php-doc-en/reference/array/functions/array-uintersect.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.array-uintersect" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>array_uintersect</refname>
  <refpurpose>Computes the intersection of arrays, compares data by a callback function</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>array</type><methodname>array_uintersect</methodname>
   <methodparam><type>array</type><parameter>array1</parameter></methodparam>
   <methodparam><type>array</type><parameter>array2</parameter></methodparam>
   <methodparam choice="opt"><type>array</type><parameter> ...</parameter></methodparam>
   <methodparam><type>callback</type><parameter>data_compare_func</parameter></methodparam>
  </methodsynopsis>
  <para>
   Computes the intersection of arrays, compares data by a callback function.
  </para>
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>array1</parameter></term>
     <listitem>
      <para>
       The first array.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>array2</parameter></term>
     <listitem>
      <para>
       The second array.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>data_compare_func</parameter></term>
     <listitem>
      <para>
       The callback comparison function.
      </para>
      <para>
       The user supplied callback function is used for comparison.
       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.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns an array containing all the values of <parameter>array1</parameter>
   that are present in all the arguments.
  </para>
 </refsect1>
 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>array_uintersect</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
$array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red");
$array2 = array("a" => "GREEN", "B" => "brown", "yellow", "red");

print_r(array_uintersect($array1, $array2, "strcasecmp"));
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
Array
(
    [a] => green
    [b] => brown
    [0] => red
)
]]>
    </screen>
   </example>
  </para>
 </refsect1>
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>array_intersect</function></member>
    <member><function>array_intersect_assoc</function></member>
    <member><function>array_uintersect_assoc</function></member>
    <member><function>array_uintersect_uassoc</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

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