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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@264323 c90b9560-bf6c-de11-be94-00142212c4b1
128 lines
3.6 KiB
XML
128 lines
3.6 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision: 1.4 $ -->
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<refentry xml:id="function.grapheme-strrpos" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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<refnamediv>
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<refname>grapheme_strrpos</refname>
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<refpurpose>Find position (in grapheme units) of last occurrence of a string</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<para>Procedural style</para>
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<methodsynopsis>
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<type>int</type><methodname>grapheme_strrpos</methodname>
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<methodparam><type>string</type><parameter>haystack</parameter></methodparam>
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<methodparam><type>string</type><parameter>needle</parameter></methodparam>
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<methodparam choice='opt'><type>int</type><parameter>offset</parameter></methodparam>
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</methodsynopsis>
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<para>
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Find position (in grapheme units) of last occurrence of a string
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>haystack</parameter></term>
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<listitem>
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<para>
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The string to look in. Must be valid UTF-8.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>needle</parameter></term>
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<listitem>
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<para>
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The string to look for. Must be valid UTF-8.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>offset</parameter></term>
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<listitem>
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<para>
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The optional $offset parameter allows you to specify where in $haystack to
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start searching as an offset in grapheme units (not bytes or characters). If not given, the default is zero.
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The position returned is still relative to the beginning of haystack
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regardless of the value of $offset.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Returns the position as an integer. If needle is not found, grapheme_strrpos() will return boolean FALSE.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<example>
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<title><function>grapheme_strrpos</function> example</title>
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<programlisting role="php">
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<![CDATA[
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< ?php
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$char_a_ring_nfd = "a\xCC\x8A"; // 'LATIN SMALL LETTER A WITH RING ABOVE' (U+00E5) normalization form "D"
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$char_o_diaeresis_nfd = "o\xCC\x88"; // 'LATIN SMALL LETTER O WITH DIAERESIS' (U+00F6) normalization form "D"
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print grapheme_strrpos( $char_a_ring_nfd . $char_o_diaeresis_nfd . $char_o_diaeresis_nfd, $char_o_diaeresis_nfd);
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?>
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]]>
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</programlisting>
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</example>
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&example.outputs;
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<screen>
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<![CDATA[
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2
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]]>
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</screen>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>grapheme_stripos</function></member>
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<member><function>grapheme_stristr</function></member>
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<member><function>grapheme_strpos</function></member>
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<member><function>grapheme_strripos</function></member>
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<member><function>grapheme_strstr</function></member>
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<member>
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<link xlink:href="&uri.unicode.graphemes;">
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Unicode Text Segmentation: Grapheme Cluster Boundaries
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</link>
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</member>
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</simplelist>
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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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