<!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>Computes the intersection of arrays with additional index check, compares data by a callback function</title>
</head>
<body><div class="manualnavbar" style="text-align: center;">
<div class="prev" style="text-align: left; float: left;"><a href="function.array-udiff.html">array_udiff</a></div>
<div class="next" style="text-align: right; float: right;"><a href="function.array-uintersect-uassoc.html">array_uintersect_uassoc</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-uintersect-assoc" class="refentry">
<div class="refnamediv">
<h1 class="refname">array_uintersect_assoc</h1>
<p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">array_uintersect_assoc</span> — <span class="dc-title">Computes the intersection of arrays with additional index check, compares data by a callback function</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.array-uintersect-assoc-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">array</span> <span class="methodname"><strong>array_uintersect_assoc</strong></span>
( <span class="methodparam"><span class="type">array</span> <code class="parameter">$array1</code></span>
, <span class="methodparam"><span class="type">array</span> <code class="parameter">$array2</code></span>
[, <span class="methodparam"><span class="type">array</span> <code class="parameter">$...</code></span>
], <span class="methodparam"><span class="type"><a href="language.types.callable.html" class="type callable">callable</a></span> <code class="parameter">$value_compare_func</code></span>
)</div>
<p class="para rdfs-comment">
Computes the intersection of arrays with additional index check, compares
data by a callback function.
</p>
<p class="para">
Note that the keys are used in the comparison unlike in
<span class="function"><a href="function.array-uintersect.html" class="function">array_uintersect()</a></span>.
The data is compared by using a callback function.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.array-uintersect-assoc-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">array1</code></em></span>
<dd>
<p class="para">
The first array.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">array2</code></em></span>
<dd>
<p class="para">
The second array.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">value_compare_func</code></em></span>
<dd>
<p class="para">
The comparison function must return an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second.
</p>
<div class="methodsynopsis dc-description"><span class="type">int</span> <span class="methodname"><span class="replaceable">callback</span></span> ( <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$a</code></span>, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$b</code></span> )</div>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.array-uintersect-assoc-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns an array containing all the values of
<em><code class="parameter">array1</code></em> that are present in all the arguments.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.array-uintersect-assoc-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-4990">
<p><strong>Example #1 <span class="function"><strong>array_uintersect_assoc()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$array1 </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"a" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"green"</span><span style="color: #007700">, </span><span style="color: #DD0000">"b" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"brown"</span><span style="color: #007700">, </span><span style="color: #DD0000">"c" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"blue"</span><span style="color: #007700">, </span><span style="color: #DD0000">"red"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$array2 </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"a" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"GREEN"</span><span style="color: #007700">, </span><span style="color: #DD0000">"B" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"brown"</span><span style="color: #007700">, </span><span style="color: #DD0000">"yellow"</span><span style="color: #007700">, </span><span style="color: #DD0000">"red"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">array_uintersect_assoc</span><span style="color: #007700">(</span><span style="color: #0000BB">$array1</span><span style="color: #007700">, </span><span style="color: #0000BB">$array2</span><span style="color: #007700">, </span><span style="color: #DD0000">"strcasecmp"</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
(
[a] => green
)
</pre></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.array-uintersect-assoc-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.array-uintersect.html" class="function" rel="rdfs-seeAlso">array_uintersect()</a> - Computes the intersection of arrays, compares data by a callback function</span></li>
<li class="member"> <span class="function"><a href="function.array-intersect-assoc.html" class="function" rel="rdfs-seeAlso">array_intersect_assoc()</a> - Computes the intersection of arrays with additional index check</span></li>
<li class="member"> <span class="function"><a href="function.array-intersect-uassoc.html" class="function" rel="rdfs-seeAlso">array_intersect_uassoc()</a> - Computes the intersection of arrays with additional index check, compares indexes by a callback function</span></li>
<li class="member"> <span class="function"><a href="function.array-uintersect-uassoc.html" class="function" rel="rdfs-seeAlso">array_uintersect_uassoc()</a> - Computes the intersection of arrays with additional index check, compares data and indexes by a callback functions</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-udiff.html">array_udiff</a></div>
<div class="next" style="text-align: right; float: right;"><a href="function.array-uintersect-uassoc.html">array_uintersect_uassoc</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>
