<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >mysql_real_escape_string</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="MySQL 函数" HREF="ref.mysql.html"><LINK REL="PREVIOUS" TITLE="mysql_query" HREF="function.mysql-query.html"><LINK REL="NEXT" TITLE="mysql_result" HREF="function.mysql-result.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.mysql-query.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.mysql-result.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.mysql-real-escape-string" ></A >mysql_real_escape_string</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN136314" ></A ><P > (PHP 4 >= 4.3.0, PHP 5)</P >mysql_real_escape_string -- 转义 SQL 语句中使用的字符串中的特殊字符,并考虑到连接的当前字符集 </DIV ><DIV CLASS="refsect1" ><A NAME="AEN136317" ></A ><H2 >说明</H2 >string <B CLASS="methodname" >mysql_real_escape_string</B > ( string unescaped_string [, resource link_identifier] )<BR ></BR ><P > 本函数将 <CODE CLASS="parameter" >unescaped_string</CODE > 中的特殊字符转义,并计及连接的当前字符集,因此可以安全用于 <A HREF="function.mysql-query.html" ><B CLASS="function" >mysql_query()</B ></A >。 </P ><DIV CLASS="note" ><BLOCKQUOTE CLASS="note" ><P ><B >注意: </B > <B CLASS="function" >mysql_real_escape_string()</B > 并不转义 <TT CLASS="literal" >%</TT > 和 <TT CLASS="literal" >_</TT >。 </P ></BLOCKQUOTE ></DIV ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN136337" ></A ><P ><B >例 1. <B CLASS="function" >mysql_real_escape_string()</B > 例子</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />$item </font><font color="#007700">= </font><font color="#DD0000">"Zak's and Derick's Laptop"</font><font color="#007700">;<br /></font><font color="#0000BB">$escaped_item </font><font color="#007700">= </font><font color="#0000BB">mysql_real_escape_string</font><font color="#007700">(</font><font color="#0000BB">$item</font><font color="#007700">);<br /></font><font color="#0000BB">printf </font><font color="#007700">(</font><font color="#DD0000">"Escaped string: %s\n"</font><font color="#007700">, </font><font color="#0000BB">$escaped_item</font><font color="#007700">);<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ><P > 以上例子将产生如下输出: </P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="screen" >Escaped string: Zak\'s and Derick\'s Laptop</PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><P > 参见 <A HREF="function.mysql-escape-string.html" ><B CLASS="function" >mysql_escape_string()</B ></A > 和 <B CLASS="function" >mysql_character_set_name()</B >。 </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.mysql-query.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.mysql-result.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >mysql_query</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.mysql.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >mysql_result</TD ></TR ></TABLE ></DIV ></BODY ></HTML >