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https://github.com/sigmasternchen/php-doc-en
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148550502b
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@164050 c90b9560-bf6c-de11-be94-00142212c4b1
101 lines
3.4 KiB
XML
101 lines
3.4 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.4 $ -->
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<!-- splitted from ./en/functions/strings.xml, last change in rev 1.2 -->
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<refentry id="function.substr-replace">
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<refnamediv>
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<refname>substr_replace</refname>
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<refpurpose>Replace text within a portion of a string</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>string</type><methodname>substr_replace</methodname>
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<methodparam><type>string</type><parameter>string</parameter></methodparam>
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<methodparam><type>string</type><parameter>replacement</parameter></methodparam>
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<methodparam><type>int</type><parameter>start</parameter></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>length</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>substr_replace</function> replaces a copy of
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<parameter>string</parameter> delimited by the
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<parameter>start</parameter> and (optionally)
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<parameter>length</parameter> parameters with the string given in
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<parameter>replacement</parameter>. The result is returned.
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</para>
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<para>
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If <parameter>start</parameter> is positive, the replacing will
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begin at the <parameter>start</parameter>'th offset into
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<parameter>string</parameter>.
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</para>
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<para>
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If <parameter>start</parameter> is negative, the replacing will
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begin at the <parameter>start</parameter>'th character from the
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end of <parameter>string</parameter>.
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</para>
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<para>
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If <parameter>length</parameter> is given and is positive, it
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represents the length of the portion of
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<parameter>string</parameter> which is to be replaced. If it is
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negative, it represents the number of characters from the end of
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<parameter>string</parameter> at which to stop replacing. If it
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is not given, then it will default to strlen(
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<parameter>string</parameter> ); i.e. end the replacing at the
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end of <parameter>string</parameter>.
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</para>
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<para>
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<example>
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<title><function>substr_replace</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$var = 'ABCDEFGH:/MNRPQR/';
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echo "Original: $var<hr />\n";
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/* These two examples replace all of $var with 'bob'. */
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echo substr_replace($var, 'bob', 0) . "<br />\n";
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echo substr_replace($var, 'bob', 0, strlen($var)) . "<br />\n";
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/* Insert 'bob' right at the beginning of $var. */
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echo substr_replace($var, 'bob', 0, 0) . "<br />\n";
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/* These next two replace 'MNRPQR' in $var with 'bob'. */
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echo substr_replace($var, 'bob', 10, -1) . "<br />\n";
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echo substr_replace($var, 'bob', -7, -1) . "<br />\n";
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/* Delete 'MNRPQR' from $var. */
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echo substr_replace($var, '', 10, -1) . "<br />\n";
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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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¬e.bin-safe;
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<para>
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See also <function>str_replace</function> and
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<function>substr</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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