📄 function.array-chunk.html

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head>  <title>Split an array into chunks</title>  <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.array-change-key-case.html">array_change_key_case</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.array-combine.html">array_combine</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-chunk" class="refentry"> <div class="refnamediv">  <h1 class="refname">array_chunk</h1>  <p class="verinfo">(PHP 4 &gt;= 4.2.0, PHP 5)</p><p class="refpurpose"><span class="refname">array_chunk</span> &mdash; <span class="dc-title">Split an array into chunks</span></p> </div>  <div class="refsect1 description">  <h3 class="title">Description</h3>  <div class="methodsynopsis dc-description">   <span class="type">array</span> <span class="methodname"><b><b>array_chunk</b></b></span>    ( <span class="methodparam"><span class="type">array</span> <tt class="parameter">$input</tt></span>   , <span class="methodparam"><span class="type">int</span> <tt class="parameter">$size</tt></span>   [, <span class="methodparam"><span class="type">bool</span> <tt class="parameter">$preserve_keys</tt></span>  ] )</div>  <p class="para rdfs-comment">   Chunks an array into <i><tt class="parameter">size</tt></i> large chunks.   The last chunk may contain less than <i><tt class="parameter">size</tt></i> elements.  </p> </div> <div class="refsect1 parameters">  <h3 class="title">Parameters</h3>  <p class="para">   <dl>    <dt>     <span class="term"><i><tt class="parameter">input</tt></i></span>     <dd>      <p class="para">       The array to work on      </p>     </dd>    </dt>    <dt>     <span class="term"><i><tt class="parameter">size</tt></i></span>     <dd>      <p class="para">       The size of each chunk      </p>     </dd>    </dt>    <dt>     <span class="term"><i><tt class="parameter">preserve_keys</tt></i></span>     <dd>      <p class="para">       When set to <b><tt>TRUE</tt></b> keys will be preserved.       Default is <b><tt>FALSE</tt></b> which will reindex the chunk numerically      </p>     </dd>    </dt>   </dl>  </p> </div> <div class="refsect1 returnvalues">  <h3 class="title">Return Values</h3>  <p class="para">   Returns a multidimensional numerically indexed array, starting with zero,   with each dimension containing <i><tt class="parameter">size</tt></i> elements.  </p> </div> <div class="refsect1 errors">  <h3 class="title">Errors/Exceptions</h3>  <p class="para">   If <i><tt class="parameter">size</tt></i> is less than 1   <b><tt>E_WARNING</tt></b> will be thrown and <b><tt>NULL</tt></b> returned.  </p> </div> <div class="refsect1 examples">  <h3 class="title">Examples</h3>  <p class="para">   <div class="example">    <p><b>Example #1 <b>array_chunk()</b> example</b></p>    <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$input_array&nbsp;</span><span style="color: #007700">=&nbsp;array(</span><span style="color: #DD0000">'a'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'b'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'c'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'d'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'e'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">array_chunk</span><span style="color: #007700">(</span><span style="color: #0000BB">$input_array</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">2</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">array_chunk</span><span style="color: #007700">(</span><span style="color: #0000BB">$input_array</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">2</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">true</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>    </div>    <div class="example-contents"><p>The above example will output:</p></div>    <div class="example-contents"><pre><div class="cdata"><pre>Array(    [0] =&gt; Array        (            [0] =&gt; a            [1] =&gt; b        )    [1] =&gt; Array        (            [0] =&gt; c            [1] =&gt; d        )    [2] =&gt; Array        (            [0] =&gt; e        ))Array(    [0] =&gt; Array        (            [0] =&gt; a            [1] =&gt; b        )    [1] =&gt; Array        (            [2] =&gt; c            [3] =&gt; d        )    [2] =&gt; Array        (            [4] =&gt; e        ))</pre></div>    </pre></div>   </div>  </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.array-change-key-case.html">array_change_key_case</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.array-combine.html">array_combine</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>
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