<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >eregi</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="PHP 手册" HREF="index.html"><LINK REL="UP" TITLE="POSIX 扩展正则表达式函数" HREF="ref.regex.html"><LINK REL="PREVIOUS" TITLE="eregi_replace" HREF="function.eregi-replace.html"><LINK REL="NEXT" TITLE="split" HREF="function.split.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=UTF-8"></HEAD ><BODY CLASS="refentry" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >PHP 手册</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.eregi-replace.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.split.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.eregi" ></A >eregi</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN183972" ></A ><P > (PHP 3, PHP 4, PHP 5)</P >eregi -- 不区分大小写的正则表达式匹配</DIV ><DIV CLASS="refsect1" ><A NAME="AEN183975" ></A ><H2 >说明</H2 >int <B CLASS="methodname" >eregi</B > ( string pattern, string string [, array &regs] )<BR ></BR ><P > 本函数和 <A HREF="function.ereg.html" ><B CLASS="function" >ereg()</B ></A > 完全相同,只除了在匹配字母字符时忽略大小写的区别。 </P ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN183992" ></A ><P ><B >例 1. <B CLASS="function" >eregi()</B > 例子</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />$string </font><font color="#007700">= </font><font color="#DD0000">'XYZ'</font><font color="#007700">;<br /> if (</font><font color="#0000BB">eregi</font><font color="#007700">(</font><font color="#DD0000">'z'</font><font color="#007700">, </font><font color="#0000BB">$string</font><font color="#007700">)) {<br /> echo </font><font color="#DD0000">"'$string' contains a 'z' or 'Z'!"</font><font color="#007700">;<br />}<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><P > 参见 <A HREF="function.ereg.html" ><B CLASS="function" >ereg()</B ></A >,<A HREF="function.ereg-replace.html" ><B CLASS="function" >ereg_replace()</B ></A >,<A HREF="function.eregi-replace.html" ><B CLASS="function" >eregi_replace()</B ></A >,<A HREF="function.stripos.html" ><B CLASS="function" >stripos()</B ></A > 和 <A HREF="function.stristr.html" ><B CLASS="function" >stristr()</B ></A >。 </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="function.eregi-replace.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >起始页</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.split.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >eregi_replace</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.regex.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >split</TD ></TR ></TABLE ></DIV ></BODY ></HTML >