<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Return an array with elements in reverse order</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.array-replace.html">array_replace</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.array-search.html">array_search</a></div> <div class="up"><a href="ref.array.html">Array Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="function.array-reverse" class="refentry"> <div class="refnamediv"> <h1 class="refname">array_reverse</h1> <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">array_reverse</span> — <span class="dc-title">Return an array with elements in reverse order</span></p> </div> <div class="refsect1 description" id="refsect1-function.array-reverse-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">array</span> <span class="methodname"><strong>array_reverse</strong></span> ( <span class="methodparam"><span class="type">array</span> <code class="parameter">$array</code></span> [, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$preserve_keys</code><span class="initializer"> = false</span></span> ] )</div> <p class="para rdfs-comment"> Takes an input <em><code class="parameter">array</code></em> and returns a new array with the order of the elements reversed. </p> </div> <div class="refsect1 parameters" id="refsect1-function.array-reverse-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter">array</code></em></span> <dd> <p class="para"> The input array. </p> </dd> </dt> <dt> <span class="term"><em><code class="parameter">preserve_keys</code></em></span> <dd> <p class="para"> If set to <strong><code>TRUE</code></strong> numeric keys are preserved. Non-numeric keys are not affected by this setting and will always be preserved. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-function.array-reverse-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns the reversed array. </p> </div> <div class="refsect1 changelog" id="refsect1-function.array-reverse-changelog"> <h3 class="title">Changelog</h3> <p class="para"> <table class="doctable informaltable"> <thead> <tr> <th>Version</th> <th>Description</th> </tr> </thead> <tbody class="tbody"> <tr> <td>4.0.3</td> <td> The <em><code class="parameter">preserve_keys</code></em> parameter was added. </td> </tr> </tbody> </table> </p> </div> <div class="refsect1 examples" id="refsect1-function.array-reverse-examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example" id="example-4979"> <p><strong>Example #1 <span class="function"><strong>array_reverse()</strong></span> example</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$input </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"php"</span><span style="color: #007700">, </span><span style="color: #0000BB">4.0</span><span style="color: #007700">, array(</span><span style="color: #DD0000">"green"</span><span style="color: #007700">, </span><span style="color: #DD0000">"red"</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">$reversed </span><span style="color: #007700">= </span><span style="color: #0000BB">array_reverse</span><span style="color: #007700">(</span><span style="color: #0000BB">$input</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$preserved </span><span style="color: #007700">= </span><span style="color: #0000BB">array_reverse</span><span style="color: #007700">(</span><span style="color: #0000BB">$input</span><span style="color: #007700">, </span><span style="color: #0000BB">true</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$input</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$reversed</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$preserved</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> <div class="example-contents"><p>The above example will output:</p></div> <div class="example-contents screen"> <div class="cdata"><pre> Array ( [0] => php [1] => 4 [2] => Array ( [0] => green [1] => red ) ) Array ( [0] => Array ( [0] => green [1] => red ) [1] => 4 [2] => php ) Array ( [2] => Array ( [0] => green [1] => red ) [1] => 4 [0] => php ) </pre></div> </div> </div> </p> </div> <div class="refsect1 seealso" id="refsect1-function.array-reverse-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="function.array-flip.html" class="function" rel="rdfs-seeAlso">array_flip()</a> - Exchanges all keys with their associated values in an array</span></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.array-replace.html">array_replace</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.array-search.html">array_search</a></div> <div class="up"><a href="ref.array.html">Array Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>