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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Replace regular expression case insensitive</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.ereg.html">ereg</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.eregi.html">eregi</a></div> <div class="up"><a href="ref.regex.html">POSIX Regex Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.eregi-replace" class="refentry"> <div class="refnamediv"> <h1 class="refname">eregi_replace</h1> <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">eregi_replace</span> — <span class="dc-title">Replace regular expression case insensitive</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">string</span> <span class="methodname"><b><b>eregi_replace</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$pattern</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter">$replacement</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter">$string</tt></span> )</div> <p class="para rdfs-comment"> This function is identical to <a href="function.ereg-replace.html" class="function">ereg_replace()</a> except that this ignores case distinction when matching alphabetic characters. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">pattern</tt></i></span> <dd> <p class="para"> A POSIX extended regular expression. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">replacement</tt></i></span> <dd> <p class="para"> If <i><tt class="parameter">pattern</tt></i> contains parenthesized substrings, <i><tt class="parameter">replacement</tt></i> may contain substrings of the form <i>\\<span class="replaceable">digit</span></i>, which will be replaced by the text matching the digit'th parenthesized substring; <i>\\0</i> will produce the entire contents of string. Up to nine substrings may be used. Parentheses may be nested, in which case they are counted by the opening parenthesis. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">string</tt></i></span> <dd> <p class="para"> The input string. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> The modified string is returned. If no matches are found in <i><tt class="parameter">string</tt></i>, then it will be returned unchanged. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 Highlight search results</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$pattern </span><span style="color: #007700">= </span><span style="color: #DD0000">'(>[^<]*)('</span><span style="color: #007700">. </span><span style="color: #0000BB">quotemeta</span><span style="color: #007700">(</span><span style="color: #0000BB">$_GET</span><span style="color: #007700">[</span><span style="color: #DD0000">'search'</span><span style="color: #007700">]) .</span><span style="color: #DD0000">')'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$replacement </span><span style="color: #007700">= </span><span style="color: #DD0000">'\\1<span class="search">\\2</span>'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$body </span><span style="color: #007700">= </span><span style="color: #0000BB">eregi_replace</span><span style="color: #007700">(</span><span style="color: #0000BB">$pattern</span><span style="color: #007700">, </span><span style="color: #0000BB">$replacement</span><span style="color: #007700">, </span><span style="color: #0000BB">$body</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.ereg.html" class="function" rel="rdfs-seeAlso">ereg()</a></li> <li class="member"><a href="function.eregi.html" class="function" rel="rdfs-seeAlso">eregi()</a></li> <li class="member"><a href="function.ereg-replace.html" class="function" rel="rdfs-seeAlso">ereg_replace()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.ereg.html">ereg</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.eregi.html">eregi</a></div> <div class="up"><a href="ref.regex.html">POSIX Regex Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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