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    <article class="phpdocumentor-element -class">
        <h2 class="phpdocumentor-content__title">
    StrictStack

        <span class="phpdocumentor-element__extends">
        extends <abbr title="\SplStack">SplStack</abbr>
    </span>
    
            <div class="phpdocumentor-element__package">
            in package
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                                    <li class="phpdocumentor-breadcrumb"><a href="packages/Basics.html">Basics</a></li>
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            <span class="phpdocumentor-element__extends">
            uses
                            <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html"><abbr title="\OCC\Basics\DataStructures\Traits\StrictSplDoublyLinkedListTrait">StrictSplDoublyLinkedListTrait</abbr></a>                    </span>
    </h2>

<div class="phpdocumentor-label-line">


</div>

        <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/StrictStack.php"><a href="files/src-datastructures-strictstack.html"><abbr title="src/DataStructures/StrictStack.php">StrictStack.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">46</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.46" class="phpdocumentor-element-found-in__source" data-line="46" data-modal="source-view" data-src="files/src/DataStructures/StrictStack.php.txt"></a>
    </aside>

            <p class="phpdocumentor-summary">A type-sensitive, taversable stack (LIFO).</p>


    <section class="phpdocumentor-description"><p>Extends <a href="https://www.php.net/splstack">\SplStack</a> with an option to restrict
the allowed data types for list items by providing the constructor with an
array of atomic types or fully qualified class names.</p>
</section>


    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/OCC-Basics-DataStructures-StrictStack.html#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">author</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                                
                                                 <section class="phpdocumentor-description"><p>Sebastian Meyer <a href="mailto:sebastian.meyer@opencultureconsulting.com">sebastian.meyer@opencultureconsulting.com</a></p>
</section>

                                    </dd>
                                                <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">template</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                                
                                                 <section class="phpdocumentor-description"><p>AllowedType of mixed</p>
</section>

                                    </dd>
                                            </dl>





<h3 id="toc">
    Table of Contents
    <a href="classes/OCC-Basics-DataStructures-StrictStack.html#toc" class="headerlink"><i class="fas fa-link"></i></a>

</h3>










<h4 id="toc-methods">
    Methods
    <a href="classes/OCC-Basics-DataStructures-StrictStack.html#toc-methods" class="headerlink"><i class="fas fa-link"></i></a>

</h4>
<dl class="phpdocumentor-table-of-contents">
            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method___construct">__construct()</a>
    <span>
                                &nbsp;: void    </span>
</dt>
<dd>Create a type-sensitive, traversable list of items.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_add">add()</a>
    <span>
                                &nbsp;: void    </span>
</dt>
<dd>Add/insert a new item at the specified offset.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_append">append()</a>
    <span>
                                &nbsp;: void    </span>
</dt>
<dd>Append items at the end of the list.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_clear">clear()</a>
    <span>
                                &nbsp;: void    </span>
</dt>
<dd>Clear the list of any items.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_get">get()</a>
    <span>
                                &nbsp;: <abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr>    </span>
</dt>
<dd>Get the item at the specified index.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_isList">isList()</a>
    <span>
                                &nbsp;: true    </span>
</dt>
<dd>Check if this can be considered a list.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_offsetSet">offsetSet()</a>
    <span>
                                &nbsp;: void    </span>
</dt>
<dd>Set the item at the specified offset.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_prepend">prepend()</a>
    <span>
                                &nbsp;: void    </span>
</dt>
<dd>Prepend items at the start of the list.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_push">push()</a>
    <span>
                                &nbsp;: void    </span>
</dt>
<dd>Push an item at the end of the list.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_remove">remove()</a>
    <span>
                                &nbsp;: void    </span>
</dt>
<dd>Remove an item from the list.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_set">set()</a>
    <span>
                                &nbsp;: void    </span>
</dt>
<dd>Set an item at the specified index.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-StrictStack.html#method_stack">stack()</a>
    <span>
                                &nbsp;: void    </span>
</dt>
<dd>Add an item to the stack.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_toArray">toArray()</a>
    <span>
                                &nbsp;: array&lt;int, <abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr>&gt;    </span>
</dt>
<dd>Return array representation of list.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_toStrictCollection">toStrictCollection()</a>
    <span>
                                &nbsp;: <a href="classes/OCC-Basics-DataStructures-StrictCollection.html"><abbr title="\OCC\Basics\DataStructures\StrictCollection">StrictCollection</abbr></a>&lt;string|int, <abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr>&gt;    </span>
</dt>
<dd>Turn list into a type-sensitive collection.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_unshift">unshift()</a>
    <span>
                                &nbsp;: void    </span>
</dt>
<dd>Prepend the list with an item.</dd>

            <dt class="phpdocumentor-table-of-contents__entry -method -public">
    <a class="" href="classes/OCC-Basics-DataStructures-StrictStack.html#method_unstack">unstack()</a>
    <span>
                                &nbsp;: <abbr title="\OCC\Basics\DataStructures\AllowedType">AllowedType</abbr>    </span>
</dt>
<dd>Unstack an item from the stack.</dd>

    </dl>



        

        

            <section class="phpdocumentor-methods">
        <h3 class="phpdocumentor-elements__header" id="methods">
            Methods
            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#methods" class="headerlink"><i class="fas fa-link"></i></a>

        </h3>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method___construct">
        __construct()
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method___construct" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php"><a href="files/src-datastructures-traits-strictspldoublylinkedlisttrait.html"><abbr title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php">StrictSplDoublyLinkedListTrait.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">368</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.368" class="phpdocumentor-element-found-in__source" data-line="368" data-modal="source-view" data-src="files/src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Create a type-sensitive, traversable list of items.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">__construct</span><span>(</span><span class="phpdocumentor-signature__argument"><span>[</span><span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, string&gt;&nbsp;</span><span class="phpdocumentor-signature__argument__name">$allowedTypes</span><span> = </span><span class="phpdocumentor-signature__argument__default-value">[]</span><span> ]</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">void</span></code>

    <div class="phpdocumentor-label-line">
        </div>
    
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$allowedTypes</span>
                : <span class="phpdocumentor-signature__argument__return-type">array&lt;string|int, string&gt;</span>
                 = <span class="phpdocumentor-signature__argument__default-value">[]</span>            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>Allowed data types of items (optional)</p>
<p>If empty, all types are allowed.
Possible values are:</p>
<ul>
<li>&quot;array&quot;</li>
<li>&quot;bool&quot;</li>
<li>&quot;callable&quot;</li>
<li>&quot;countable&quot;</li>
<li>&quot;float&quot; or &quot;double&quot;</li>
<li>&quot;int&quot; or &quot;integer&quot; or &quot;long&quot;</li>
<li>&quot;iterable&quot;</li>
<li>&quot;null&quot;</li>
<li>&quot;numeric&quot;</li>
<li>&quot;object&quot; or FQCN</li>
<li>&quot;resource&quot;</li>
<li>&quot;scalar&quot;</li>
<li>&quot;string&quot;</li>
</ul>
</section>

            </dd>
            </dl>

    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method___construct#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><abbr title="\InvalidArgumentException">InvalidArgumentException</abbr></span>
                                                            
                                                 <section class="phpdocumentor-description"><p>if any value of <code class="prettyprint">$allowedTypes</code> is not a string</p>
</section>

                                    </dd>
                                            </dl>

    

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_add">
        add()
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_add" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php"><a href="files/src-datastructures-traits-strictspldoublylinkedlisttrait.html"><abbr title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php">StrictSplDoublyLinkedListTrait.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">71</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.71" class="phpdocumentor-element-found-in__source" data-line="71" data-modal="source-view" data-src="files/src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Add/insert a new item at the specified offset.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">add</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$offset</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$value</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">void</span></code>

    <div class="phpdocumentor-label-line">
            <div class="phpdocumentor-label phpdocumentor-label--success"><span>API</span><span>Yes</span></div>

        </div>
    
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$offset</span>
                : <span class="phpdocumentor-signature__argument__return-type">int</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>The offset where the new item is to be inserted</p>
</section>

            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$value</span>
                : <span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>The new item for the offset</p>
</section>

            </dd>
            </dl>

    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_add#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><a href="classes/OCC-Basics-DataStructures-Exceptions-InvalidDataTypeException.html"><abbr title="\OCC\Basics\DataStructures\Exceptions\InvalidDataTypeException">InvalidDataTypeException</abbr></a></span>
                                                            
                                                 <section class="phpdocumentor-description"><p>if <code class="prettyprint">$value</code> is not of allowed type</p>
</section>

                                    </dd>
                            <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><abbr title="\OutOfRangeException">OutOfRangeException</abbr></span>
                                                            
                                                 <section class="phpdocumentor-description"><p>when <code class="prettyprint">$offset</code> is out of bounds</p>
</section>

                                    </dd>
                                            </dl>

    

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_append">
        append()
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_append" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php"><a href="files/src-datastructures-traits-strictspldoublylinkedlisttrait.html"><abbr title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php">StrictSplDoublyLinkedListTrait.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">87</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.87" class="phpdocumentor-element-found-in__source" data-line="87" data-modal="source-view" data-src="files/src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Append items at the end of the list.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">append</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr>&nbsp;</span><span class="phpdocumentor-signature__argument__variadic-operator">...</span><span class="phpdocumentor-signature__argument__name">$values</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">void</span></code>

    <div class="phpdocumentor-label-line">
            <div class="phpdocumentor-label phpdocumentor-label--success"><span>API</span><span>Yes</span></div>

        </div>
    
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$values</span>
                : <span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>One or more items to append</p>
</section>

            </dd>
            </dl>

    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_append#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><a href="classes/OCC-Basics-DataStructures-Exceptions-InvalidDataTypeException.html"><abbr title="\OCC\Basics\DataStructures\Exceptions\InvalidDataTypeException">InvalidDataTypeException</abbr></a></span>
                                                            
                                                 <section class="phpdocumentor-description"><p>if any <code class="prettyprint">$values</code> is not of allowed type</p>
</section>

                                    </dd>
                                            </dl>

    

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_clear">
        clear()
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_clear" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php"><a href="files/src-datastructures-traits-strictspldoublylinkedlisttrait.html"><abbr title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php">StrictSplDoublyLinkedListTrait.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">113</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.113" class="phpdocumentor-element-found-in__source" data-line="113" data-modal="source-view" data-src="files/src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Clear the list of any items.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">clear</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">void</span></code>

    <div class="phpdocumentor-label-line">
            <div class="phpdocumentor-label phpdocumentor-label--success"><span>API</span><span>Yes</span></div>

        </div>
    
    
    
    

    

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_get">
        get()
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_get" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php"><a href="files/src-datastructures-traits-strictspldoublylinkedlisttrait.html"><abbr title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php">StrictSplDoublyLinkedListTrait.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">132</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.132" class="phpdocumentor-element-found-in__source" data-line="132" data-modal="source-view" data-src="files/src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Get the item at the specified index.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">get</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$offset</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr></span></code>

    <div class="phpdocumentor-label-line">
            <div class="phpdocumentor-label phpdocumentor-label--success"><span>API</span><span>Yes</span></div>

        </div>
    
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$offset</span>
                : <span class="phpdocumentor-signature__argument__return-type">int</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>The item's index</p>
</section>

            </dd>
            </dl>

    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_get#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><abbr title="\OutOfRangeException">OutOfRangeException</abbr></span>
                                                            
                                                 <section class="phpdocumentor-description"><p>when <code class="prettyprint">$offset</code> is out of bounds</p>
</section>

                                    </dd>
                                            </dl>

    

            <section>
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
        <span class="phpdocumentor-signature__response_type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr></span>
                    &mdash;
                <section class="phpdocumentor-description"><p>The item</p>
</section>

            </section>

</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_isList">
        isList()
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_isList" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php"><a href="files/src-datastructures-traits-strictspldoublylinkedlisttrait.html"><abbr title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php">StrictSplDoublyLinkedListTrait.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">144</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.144" class="phpdocumentor-element-found-in__source" data-line="144" data-modal="source-view" data-src="files/src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Check if this can be considered a list.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">isList</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">true</span></code>

    <div class="phpdocumentor-label-line">
            <div class="phpdocumentor-label phpdocumentor-label--success"><span>API</span><span>Yes</span></div>

        </div>
    
    
    
    

    

            <section>
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
        <span class="phpdocumentor-signature__response_type">true</span>
                    &mdash;
                <section class="phpdocumentor-description"><p>Always TRUE (this exists only for compatibility reasons)</p>
</section>

            </section>

</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_offsetSet">
        offsetSet()
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_offsetSet" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php"><a href="files/src-datastructures-traits-strictspldoublylinkedlisttrait.html"><abbr title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php">StrictSplDoublyLinkedListTrait.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">162</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.162" class="phpdocumentor-element-found-in__source" data-line="162" data-modal="source-view" data-src="files/src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Set the item at the specified offset.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">offsetSet</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">int|null&nbsp;</span><span class="phpdocumentor-signature__argument__name">$offset</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$value</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">void</span></code>

    <div class="phpdocumentor-label-line">
            <div class="phpdocumentor-label phpdocumentor-label--success"><span>API</span><span>Yes</span></div>

        </div>
    
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$offset</span>
                : <span class="phpdocumentor-signature__argument__return-type">int|null</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>The offset being set or NULL to append</p>
</section>

            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$value</span>
                : <span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>The new item for the offset</p>
</section>

            </dd>
            </dl>

    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_offsetSet#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><a href="classes/OCC-Basics-DataStructures-Exceptions-InvalidDataTypeException.html"><abbr title="\OCC\Basics\DataStructures\Exceptions\InvalidDataTypeException">InvalidDataTypeException</abbr></a></span>
                                                            
                                                 <section class="phpdocumentor-description"><p>if <code class="prettyprint">$value</code> is not of allowed type</p>
</section>

                                    </dd>
                            <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><abbr title="\OutOfRangeException">OutOfRangeException</abbr></span>
                                                            
                                                 <section class="phpdocumentor-description"><p>when <code class="prettyprint">$offset</code> is out of bounds</p>
</section>

                                    </dd>
                                            </dl>

    

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_prepend">
        prepend()
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_prepend" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php"><a href="files/src-datastructures-traits-strictspldoublylinkedlisttrait.html"><abbr title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php">StrictSplDoublyLinkedListTrait.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">187</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.187" class="phpdocumentor-element-found-in__source" data-line="187" data-modal="source-view" data-src="files/src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Prepend items at the start of the list.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">prepend</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr>&nbsp;</span><span class="phpdocumentor-signature__argument__variadic-operator">...</span><span class="phpdocumentor-signature__argument__name">$values</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">void</span></code>

    <div class="phpdocumentor-label-line">
            <div class="phpdocumentor-label phpdocumentor-label--success"><span>API</span><span>Yes</span></div>

        </div>
    
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$values</span>
                : <span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>One or more items to prepend</p>
</section>

            </dd>
            </dl>

    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_prepend#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><a href="classes/OCC-Basics-DataStructures-Exceptions-InvalidDataTypeException.html"><abbr title="\OCC\Basics\DataStructures\Exceptions\InvalidDataTypeException">InvalidDataTypeException</abbr></a></span>
                                                            
                                                 <section class="phpdocumentor-description"><p>if <code class="prettyprint">$value</code> is not of allowed type</p>
</section>

                                    </dd>
                                            </dl>

    

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_push">
        push()
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_push" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php"><a href="files/src-datastructures-traits-strictspldoublylinkedlisttrait.html"><abbr title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php">StrictSplDoublyLinkedListTrait.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">217</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.217" class="phpdocumentor-element-found-in__source" data-line="217" data-modal="source-view" data-src="files/src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Push an item at the end of the list.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">push</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$value</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">void</span></code>

    <div class="phpdocumentor-label-line">
            <div class="phpdocumentor-label phpdocumentor-label--success"><span>API</span><span>Yes</span></div>

        </div>
    
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$value</span>
                : <span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>The item to push</p>
</section>

            </dd>
            </dl>

    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_push#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><a href="classes/OCC-Basics-DataStructures-Exceptions-InvalidDataTypeException.html"><abbr title="\OCC\Basics\DataStructures\Exceptions\InvalidDataTypeException">InvalidDataTypeException</abbr></a></span>
                                                            
                                                 <section class="phpdocumentor-description"><p>if <code class="prettyprint">$value</code> is not of allowed type</p>
</section>

                                    </dd>
                                            </dl>

    

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_remove">
        remove()
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_remove" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php"><a href="files/src-datastructures-traits-strictspldoublylinkedlisttrait.html"><abbr title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php">StrictSplDoublyLinkedListTrait.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">241</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.241" class="phpdocumentor-element-found-in__source" data-line="241" data-modal="source-view" data-src="files/src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Remove an item from the list.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">remove</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$offset</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">void</span></code>

    <div class="phpdocumentor-label-line">
            <div class="phpdocumentor-label phpdocumentor-label--success"><span>API</span><span>Yes</span></div>

        </div>
    
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$offset</span>
                : <span class="phpdocumentor-signature__argument__return-type">int</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>The item's index</p>
</section>

            </dd>
            </dl>

    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_remove#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><abbr title="\OutOfRangeException">OutOfRangeException</abbr></span>
                                                            
                                                 <section class="phpdocumentor-description"><p>when <code class="prettyprint">$offset</code> is out of bounds</p>
</section>

                                    </dd>
                                            </dl>

    

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_set">
        set()
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_set" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php"><a href="files/src-datastructures-traits-strictspldoublylinkedlisttrait.html"><abbr title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php">StrictSplDoublyLinkedListTrait.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">270</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.270" class="phpdocumentor-element-found-in__source" data-line="270" data-modal="source-view" data-src="files/src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Set an item at the specified index.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">set</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">int&nbsp;</span><span class="phpdocumentor-signature__argument__name">$offset</span></span><span class="phpdocumentor-signature__argument"><span>, </span><span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$value</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">void</span></code>

    <div class="phpdocumentor-label-line">
            <div class="phpdocumentor-label phpdocumentor-label--success"><span>API</span><span>Yes</span></div>

        </div>
    
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$offset</span>
                : <span class="phpdocumentor-signature__argument__return-type">int</span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>The item's index</p>
</section>

            </dd>
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$value</span>
                : <span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>The item</p>
</section>

            </dd>
            </dl>

    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_set#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><a href="classes/OCC-Basics-DataStructures-Exceptions-InvalidDataTypeException.html"><abbr title="\OCC\Basics\DataStructures\Exceptions\InvalidDataTypeException">InvalidDataTypeException</abbr></a></span>
                                                            
                                                 <section class="phpdocumentor-description"><p>if <code class="prettyprint">$value</code> is not of allowed type</p>
</section>

                                    </dd>
                                            </dl>

    

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_stack">
        stack()
        <a href="classes/OCC-Basics-DataStructures-StrictStack.html#method_stack" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/StrictStack.php"><a href="files/src-datastructures-strictstack.html"><abbr title="src/DataStructures/StrictStack.php">StrictStack.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">62</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.62" class="phpdocumentor-element-found-in__source" data-line="62" data-modal="source-view" data-src="files/src/DataStructures/StrictStack.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Add an item to the stack.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">stack</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\AllowedType">AllowedType</abbr>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$value</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">void</span></code>

    <div class="phpdocumentor-label-line">
            <div class="phpdocumentor-label phpdocumentor-label--success"><span>API</span><span>Yes</span></div>

        </div>
    
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$value</span>
                : <span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\AllowedType">AllowedType</abbr></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>The item to stack</p>
</section>

            </dd>
            </dl>

    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/OCC-Basics-DataStructures-StrictStack.html#method_stack#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><a href="classes/OCC-Basics-DataStructures-Exceptions-InvalidDataTypeException.html"><abbr title="\OCC\Basics\DataStructures\Exceptions\InvalidDataTypeException">InvalidDataTypeException</abbr></a></span>
                                                            
                                                 <section class="phpdocumentor-description"><p>if <code class="prettyprint">$value</code> is not of allowed type</p>
</section>

                                    </dd>
                                            </dl>

    

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_toArray">
        toArray()
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_toArray" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php"><a href="files/src-datastructures-traits-strictspldoublylinkedlisttrait.html"><abbr title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php">StrictSplDoublyLinkedListTrait.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">282</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.282" class="phpdocumentor-element-found-in__source" data-line="282" data-modal="source-view" data-src="files/src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Return array representation of list.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">toArray</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">array&lt;int, <abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr>&gt;</span></code>

    <div class="phpdocumentor-label-line">
            <div class="phpdocumentor-label phpdocumentor-label--success"><span>API</span><span>Yes</span></div>

        </div>
    
    
    
    

    

            <section>
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
        <span class="phpdocumentor-signature__response_type">array&lt;int, <abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr>&gt;</span>
                    &mdash;
                <section class="phpdocumentor-description"><p>Array of list items</p>
</section>

            </section>

</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_toStrictCollection">
        toStrictCollection()
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_toStrictCollection" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php"><a href="files/src-datastructures-traits-strictspldoublylinkedlisttrait.html"><abbr title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php">StrictSplDoublyLinkedListTrait.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">294</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.294" class="phpdocumentor-element-found-in__source" data-line="294" data-modal="source-view" data-src="files/src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Turn list into a type-sensitive collection.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">toStrictCollection</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type"><a href="classes/OCC-Basics-DataStructures-StrictCollection.html"><abbr title="\OCC\Basics\DataStructures\StrictCollection">StrictCollection</abbr></a>&lt;string|int, <abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr>&gt;</span></code>

    <div class="phpdocumentor-label-line">
            <div class="phpdocumentor-label phpdocumentor-label--success"><span>API</span><span>Yes</span></div>

        </div>
    
    
    
    

    

            <section>
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
        <span class="phpdocumentor-signature__response_type"><a href="classes/OCC-Basics-DataStructures-StrictCollection.html"><abbr title="\OCC\Basics\DataStructures\StrictCollection">StrictCollection</abbr></a>&lt;string|int, <abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr>&gt;</span>
                    &mdash;
                <section class="phpdocumentor-description"><p>A type-sensitive collection of the list's items</p>
</section>

            </section>

</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_unshift">
        unshift()
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_unshift" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php"><a href="files/src-datastructures-traits-strictspldoublylinkedlisttrait.html"><abbr title="src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php">StrictSplDoublyLinkedListTrait.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">330</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.330" class="phpdocumentor-element-found-in__source" data-line="330" data-modal="source-view" data-src="files/src/DataStructures/Traits/StrictSplDoublyLinkedListTrait.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Prepend the list with an item.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">unshift</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr>&nbsp;</span><span class="phpdocumentor-signature__argument__name">$value</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">void</span></code>

    <div class="phpdocumentor-label-line">
            <div class="phpdocumentor-label phpdocumentor-label--success"><span>API</span><span>Yes</span></div>

        </div>
    
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
                <span class="phpdocumentor-signature__argument__name">$value</span>
                : <span class="phpdocumentor-signature__argument__return-type"><abbr title="\OCC\Basics\DataStructures\Traits\AllowedType">AllowedType</abbr></span>
                            </dt>
            <dd class="phpdocumentor-argument-list__definition">
                    <section class="phpdocumentor-description"><p>The item to unshift</p>
</section>

            </dd>
            </dl>

    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_unshift#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><a href="classes/OCC-Basics-DataStructures-Exceptions-InvalidDataTypeException.html"><abbr title="\OCC\Basics\DataStructures\Exceptions\InvalidDataTypeException">InvalidDataTypeException</abbr></a></span>
                                                            
                                                 <section class="phpdocumentor-description"><p>if <code class="prettyprint">$value</code> is not of allowed type</p>
</section>

                                    </dd>
                                            </dl>

    

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -public
                                                        "
>
    <h4 class="phpdocumentor-element__name" id="method_unstack">
        unstack()
        <a href="classes/OCC-Basics-DataStructures-StrictStack.html#method_unstack" class="headerlink"><i class="fas fa-link"></i></a>

    </h4>
    <aside class="phpdocumentor-element-found-in">
    <abbr class="phpdocumentor-element-found-in__file" title="src/DataStructures/StrictStack.php"><a href="files/src-datastructures-strictstack.html"><abbr title="src/DataStructures/StrictStack.php">StrictStack.php</abbr></a></abbr>
    :
    <span class="phpdocumentor-element-found-in__line">76</span>

            <a href="classes/OCC-Basics-DataStructures-StrictStack.html#source-view.76" class="phpdocumentor-element-found-in__source" data-line="76" data-modal="source-view" data-src="files/src/DataStructures/StrictStack.php.txt"></a>
    </aside>

        <p class="phpdocumentor-summary">Unstack an item from the stack.</p>

    <code class="phpdocumentor-code phpdocumentor-signature ">
    <span class="phpdocumentor-signature__visibility">public</span>
                    <span class="phpdocumentor-signature__name">unstack</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type"><abbr title="\OCC\Basics\DataStructures\AllowedType">AllowedType</abbr></span></code>

    <div class="phpdocumentor-label-line">
            <div class="phpdocumentor-label phpdocumentor-label--success"><span>API</span><span>Yes</span></div>

        </div>
    
    
    
    
    <h5 class="phpdocumentor-tag-list__heading" id="tags">
        Tags
        <a href="classes/OCC-Basics-DataStructures-StrictStack.html#method_unstack#tags" class="headerlink"><i class="fas fa-link"></i></a>

    </h5>
    <dl class="phpdocumentor-tag-list">
                                    <dt class="phpdocumentor-tag-list__entry">
                    <span class="phpdocumentor-tag__name">throws</span>
                </dt>
                <dd class="phpdocumentor-tag-list__definition">
                                                                <span class="phpdocumentor-tag-link"><abbr title="\RuntimeException">RuntimeException</abbr></span>
                                                            
                                                 <section class="phpdocumentor-description"><p>if the stack is empty</p>
</section>

                                    </dd>
                                            </dl>

    

            <section>
        <h5 class="phpdocumentor-return-value__heading">Return values</h5>
        <span class="phpdocumentor-signature__response_type"><abbr title="\OCC\Basics\DataStructures\AllowedType">AllowedType</abbr></span>
                    &mdash;
                <section class="phpdocumentor-description"><p>The unstacked item</p>
</section>

            </section>

</article>
            </section>

        <div class="phpdocumentor-modal" id="source-view">
    <div class="phpdocumentor-modal-bg" data-exit-button></div>
    <div class="phpdocumentor-modal-container">
        <div class="phpdocumentor-modal-content">
            <pre style="max-height: 500px; overflow-y: scroll" data-src="files/src/DataStructures/StrictStack.php.txt" class="language-php line-numbers linkable-line-numbers"></pre>
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    <section class="phpdocumentor-on-this-page__content">
        <strong class="phpdocumentor-on-this-page__title">On this page</strong>

        <ul class="phpdocumentor-list -clean">
            <li class="phpdocumentor-on-this-page-section__title">Table Of Contents</li>
            <li>
                <ul class="phpdocumentor-list -clean">
                                                                                <li><a href="classes/OCC-Basics-DataStructures-StrictStack.html#toc-methods">Methods</a></li>
                                    </ul>
            </li>
            
            
                        <li class="phpdocumentor-on-this-page-section__title">Methods</li>
            <li>
                <ul class="phpdocumentor-list -clean">
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method___construct">__construct()</a></li>
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_add">add()</a></li>
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_append">append()</a></li>
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_clear">clear()</a></li>
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_get">get()</a></li>
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_isList">isList()</a></li>
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_offsetSet">offsetSet()</a></li>
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_prepend">prepend()</a></li>
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_push">push()</a></li>
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_remove">remove()</a></li>
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_set">set()</a></li>
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-StrictStack.html#method_stack">stack()</a></li>
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_toArray">toArray()</a></li>
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_toStrictCollection">toStrictCollection()</a></li>
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-Traits-StrictSplDoublyLinkedListTrait.html#method_unshift">unshift()</a></li>
                                            <li class=""><a href="classes/OCC-Basics-DataStructures-StrictStack.html#method_unstack">unstack()</a></li>
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