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

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<refentry xml:id="function.array-uintersect-uassoc" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>array_uintersect_uassoc</refname>
  <refpurpose>Computes the intersection of arrays with additional index check, compares data and indexes by a callback functions</refpurpose>
 </refnamediv>
 <refsect1>
  <title>Description</title>
  <methodsynopsis>
   <type>array</type><methodname>array_uintersect_uassoc</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>
   <methodparam><type>callback</type><parameter>key_compare_func</parameter></methodparam>
  </methodsynopsis>
  <para>
   <function>array_uintersect_uassoc</function> returns an array
   containing all the values of <parameter>array1</parameter>
   that are present in all the arguments. Note that the keys are used in
   the comparison unlike in <function>array_uintersect</function>.
   Both the data and the indexes are compared by using a callback functions.
  </para>
  <para>
   <example>
    <title><function>array_uintersect_uassoc</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_uassoc($array1, $array2, "strcasecmp", "strcasecmp"));
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
Array
(
    [a] => green
    [b] => brown
)
]]>
    </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_uintersect</function>,
   <function>array_intersect_assoc</function>,
   <function>array_intersect_uassoc</function> and
   <function>array_uintersect_assoc</function>.
  </para>
 </refsect1>
</refentry>

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