mirror of
https://github.com/sigmasternchen/php-doc-en
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54d64fe32a
added cross-links between them via "see also" section git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@333972 c90b9560-bf6c-de11-be94-00142212c4b1
136 lines
3.1 KiB
XML
136 lines
3.1 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.strlen">
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<refnamediv>
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<refname>strlen</refname>
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<refpurpose>Get string length</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>int</type><methodname>strlen</methodname>
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<methodparam><type>string</type><parameter>string</parameter></methodparam>
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</methodsynopsis>
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<para>
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Returns the length of the given <parameter>string</parameter>.
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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>string</parameter></term>
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<listitem>
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<para>
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The <type>string</type> being measured for length.
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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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The length of the <parameter>string</parameter> on success,
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and <literal>0</literal> if the <parameter>string</parameter> is empty.
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</para>
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</refsect1>
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<refsect1 role="changelog">
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&reftitle.changelog;
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<informaltable>
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<tgroup cols="2">
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<thead>
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<row>
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<entry>&Version;</entry>
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<entry>&Description;</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>5.3.0</entry>
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<entry>
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Prior versions treated arrays as the string <literal>Array</literal>, thus returning
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a string length of <literal>5</literal> and emitting an <constant>E_NOTICE</constant> level error.
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</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title>A <function>strlen</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$str = 'abcdef';
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echo strlen($str); // 6
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$str = ' ab cd ';
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echo strlen($str); // 7
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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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</refsect1>
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<refsect1 role="notes">
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&reftitle.notes;
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<note>
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<para>
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<function>strlen</function> returns the number of bytes rather than the number
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of characters in a string.
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</para>
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</note>
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<note>
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<para>
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<function>strlen</function> returns &null; when executed on arrays, and
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an <constant>E_WARNING</constant> level error is emitted.
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</para>
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</note>
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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>count</function></member>
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<member><function>grapheme_strlen</function></member>
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<member><function>iconv_strlen</function></member>
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<member><function>mb_strlen</function></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:"~/.phpdoc/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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