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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>Computes the intersection of arrays with additional index check, compares indexes by a callback function</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-intersect-key.html">array_intersect_key</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.array-intersect-ukey.html">array_intersect_ukey</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-intersect-uassoc" class="refentry"> <div class="refnamediv"> <h1 class="refname">array_intersect_uassoc</h1> <p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">array_intersect_uassoc</span> — <span class="dc-title">Computes the intersection of arrays with additional index check, compares indexes by a callback function</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_intersect_uassoc</b></b></span> ( <span class="methodparam"><span class="type">array</span> <tt class="parameter">$array1</tt></span> , <span class="methodparam"><span class="type">array</span> <tt class="parameter">$array2</tt></span> [, <span class="methodparam"><span class="type">array</span> <tt class="parameter">$ ...</tt></span> ], <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.callback" class="type callback">callback</a></span> <tt class="parameter">$key_compare_func</tt></span> )</div> <p class="para rdfs-comment"> <b>array_intersect_uassoc()</b> returns an array containing all the values of <i><tt class="parameter">array1</tt></i> that are present in all the arguments. Note that the keys are used in the comparison unlike in <a href="function.array-intersect.html" class="function">array_intersect()</a>. </p> <p class="para"> The index comparison is done by a user supplied callback function. It must return an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">array1</tt></i></span> <dd> <p class="para"> Initial array for comparision of the arrays. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">array2</tt></i></span> <dd> <p class="para"> First array to compare keys against. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">array</tt></i></span> <dd> <p class="para"> Variable list of array arguments to compare values against. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">key_compare_func</tt></i></span> <dd> <p class="para"> User supplied callback function to do the comparision. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns the values of <i><tt class="parameter">array1</tt></i> whose values exist in all of the arguments. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>array_intersect_uassoc()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$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">$array2 </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"a" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"GREEN"</span><span style="color: #007700">, </span><span style="color: #DD0000">"B" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"brown"</span><span style="color: #007700">, </span><span style="color: #DD0000">"yellow"</span><span style="color: #007700">, </span><span style="color: #DD0000">"red"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">array_intersect_uassoc</span><span style="color: #007700">(</span><span style="color: #0000BB">$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"><pre><div class="cdata"><pre>Array( [b] => brown)</pre></div> </pre></div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.array-intersect.html" class="function" rel="rdfs-seeAlso">array_intersect()</a></li> <li class="member"><a href="function.array-intersect-assoc.html" class="function" rel="rdfs-seeAlso">array_intersect_assoc()</a></li> <li class="member"><a href="function.array-uintersect-assoc.html" class="function" rel="rdfs-seeAlso">array_uintersect_assoc()</a></li> <li class="member"><a href="function.array-uintersect-uassoc.html" class="function" rel="rdfs-seeAlso">array_uintersect_uassoc()</a></li> <li class="member"><a href="function.array-intersect-key.html" class="function" rel="rdfs-seeAlso">array_intersect_key()</a></li> <li class="member"><a href="function.array-intersect-ukey.html" class="function" rel="rdfs-seeAlso">array_intersect_ukey()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.array-intersect-key.html">array_intersect_key</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.array-intersect-ukey.html">array_intersect_ukey</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>⌨️ 快捷键说明
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