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https://github.com/sigmasternchen/php-doc-en
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23396d4d4e
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@138081 c90b9560-bf6c-de11-be94-00142212c4b1
84 lines
2.3 KiB
XML
84 lines
2.3 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.10 $ -->
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<!-- splitted from ./en/functions/array.xml, last change in rev 1.14 -->
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<refentry id="function.array-intersect">
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<refnamediv>
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<refname>array_intersect</refname>
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<refpurpose>Computes the intersection of arrays</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>array</type><methodname>array_intersect</methodname>
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<methodparam><type>array</type><parameter>array1</parameter></methodparam>
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<methodparam><type>array</type><parameter>array2</parameter></methodparam>
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<methodparam choice="opt"><type>array</type><parameter> ...</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>array_intersect</function> returns an array
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containing all the values of <parameter>array1</parameter>
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that are present in all the arguments.
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Note that keys are preserved.
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</para>
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<para>
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<example>
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<title><function>array_intersect</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$array1 = array("a" => "green", "red", "blue");
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$array2 = array("b" => "green", "yellow", "red");
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$result = array_intersect($array1, $array2);
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?>
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]]>
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</programlisting>
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<para>
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This makes <varname>$result</varname> have
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</para>
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<screen role="php">
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<![CDATA[
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Array
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(
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[a] => green
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[0] => red
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)
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]]>
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</screen>
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</example>
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</para>
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<note>
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<simpara>
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Two elements are considered equal if and only if
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<literal>(string) $elem1 === (string) $elem2</literal>. In words:
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when the string representation is the same.
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<!-- TODO: example of it... -->
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</simpara>
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</note>
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<para>
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See also <function>array_intersect_assoc</function>,
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<function>array_diff</function>, and
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<function>array_diff_assoc</function>.
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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