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https://github.com/sigmasternchen/php-doc-en
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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@138081 c90b9560-bf6c-de11-be94-00142212c4b1
88 lines
2.9 KiB
XML
88 lines
2.9 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.7 $ -->
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<!-- splitted from ./en/functions/array.xml, last change in rev 1.2 -->
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<refentry id="function.array-slice">
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<refnamediv>
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<refname>array_slice</refname>
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<refpurpose>Extract a slice of the array</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_slice</methodname>
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<methodparam><type>array</type><parameter>array</parameter></methodparam>
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<methodparam><type>int</type><parameter>offset</parameter></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>
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length
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</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>array_slice</function> returns the sequence of elements
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from the array <parameter>array</parameter> as specified by the
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<parameter>offset</parameter> and <parameter>length</parameter>
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parameters.
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</para>
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<para>
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If <parameter>offset</parameter> is positive, the sequence will
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start at that offset in the <parameter>array</parameter>. If
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<parameter>offset</parameter> is negative, the sequence will
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start that far from the end of the <parameter>array</parameter>.
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</para>
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<para>
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If <parameter>length</parameter> is given and is positive, then
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the sequence will have that many elements in it. If
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<parameter>length</parameter> is given and is negative then the
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sequence will stop that many elements from the end of the
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array. If it is omitted, then the sequence will have everything
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from <parameter>offset</parameter> up until the end of the
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<parameter>array</parameter>.
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</para>
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<para>
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Note that <function>array_slice</function> will ignore array
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keys, and will calculate offsets and lengths based on the
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actual positions of elements within the array.
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</para>
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<para>
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<example>
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<title><function>array_slice</function> examples</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$input = array ("a", "b", "c", "d", "e");
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$output = array_slice($input, 2); // returns "c", "d", and "e"
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$output = array_slice($input, 2, -1); // returns "c", "d"
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$output = array_slice($input, -2, 1); // returns "d"
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$output = array_slice($input, 0, 3); // returns "a", "b", and "c"
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?>
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]]>
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</programlisting>
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</example>
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</para>
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<para>
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See also <function>array_splice</function> and
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<function>unset</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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