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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>Pattern Syntax</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="pcre.pattern.html">PCRE Patterns</a></div> <div class="next" style="text-align: right; float: right;"><a href="pcre.pattern.syntax.differences.html">Differences From Perl</a></div> <div class="up"><a href="pcre.pattern.html">PCRE Patterns</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div> <h1>Pattern Syntax</h1><h2>Table of Contents</h2><ul class="chunklist chunklist_chapter"><li><a href="pcre.pattern.syntax.differences.html">Differences From Perl</a></li><li><a href="regexp.reference.html">Regular Expression Details</a></li></ul> <div id="pcre.pattern.syntax.description" class="section"> <h2 class="title">Description</h2> <p class="simpara"> The PCRE library is a set of functions that implement regular expression pattern matching using the same syntax and semantics as Perl 5, with just a few differences (see below). The current implementation corresponds to Perl 5.005. </p> </div> </div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="pcre.pattern.html">PCRE Patterns</a></div> <div class="next" style="text-align: right; float: right;"><a href="pcre.pattern.syntax.differences.html">Differences From Perl</a></div> <div class="up"><a href="pcre.pattern.html">PCRE Patterns</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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