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  <refentry id="function.array-uintersect">
   <refnamediv>
    <refname>array_uintersect</refname>
    <refpurpose>Computes the intersection of arrays, compares data by a callback function</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
    <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>
     <function>array_uintersect</function> returns an array
     containing all the values of <parameter>array1</parameter>
     that are present in all the arguments.
     The data is compared by using a callback function.
    </para>
    <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>
    <para>
     For comparison is used the 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.
    </para>
    <para>
     See also <function>array_intersect</function>,
     <function>array_uintersect_assoc</function>,
     <function>array_intersect_uassoc</function> and
     <function>array_uintersect_uassoc</function>.
    </para>
   </refsect1>
  </refentry>

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