<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >htmlspecialchars_decode</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="String 字符串处理函数" HREF="ref.strings.html"><LINK REL="PREVIOUS" TITLE="htmlentities" HREF="function.htmlentities.html"><LINK REL="NEXT" TITLE="htmlspecialchars" HREF="function.htmlspecialchars.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.htmlentities.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.htmlspecialchars.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.htmlspecialchars-decode" ></A >htmlspecialchars_decode</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN225363" ></A ><P > (PHP 5 >= 5.1.0RC1)</P >htmlspecialchars_decode -- Convert special HTML entities back to characters </DIV ><DIV CLASS="refsect1" ><A NAME="AEN225366" ></A ><H2 >说明</H2 >string <B CLASS="methodname" >htmlspecialchars_decode</B > ( string string [, int quote_style] )<BR ></BR ><P > This function is the opposite of <A HREF="function.htmlspecialchars.html" ><B CLASS="function" >htmlspecialchars()</B ></A >. It converts special HTML entities back to characters. </P ><P > The converted entities are: <TT CLASS="literal" >&amp;</TT >, <TT CLASS="literal" >&quot;</TT > (when ENT_NOQUOTES is not set), <TT CLASS="literal" >&#039;</TT > (when ENT_QUOTES is set), <TT CLASS="literal" >&lt;</TT > and <TT CLASS="literal" >&gt;</TT >. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN225385" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >string</CODE ></DT ><DD ><P > The string to decode </P ></DD ><DT ><CODE CLASS="parameter" >quote_style</CODE ></DT ><DD ><P > The quote style. One of the following constants: <DIV CLASS="table" ><A NAME="AEN225399" ></A ><P ><B >表 1. quote_style constants</B ></P ><TABLE BORDER="1" CLASS="CALSTABLE" ><COL><COL><THEAD ><TR ><TH >Constant Name</TH ><TH >Description</TH ></TR ></THEAD ><TBODY ><TR ><TD ><TT CLASS="constant" ><B >ENT_COMPAT</B ></TT ></TD ><TD >Will convert double-quotes and leave single-quotes alone (default)</TD ></TR ><TR ><TD ><TT CLASS="constant" ><B >ENT_QUOTES</B ></TT ></TD ><TD >Will convert both double and single quotes</TD ></TR ><TR ><TD ><TT CLASS="constant" ><B >ENT_NOQUOTES</B ></TT ></TD ><TD >Will leave both double and single quotes unconverted</TD ></TR ></TBODY ></TABLE ></DIV > </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN225419" ></A ><H2 >返回值</H2 ><P > Returns the decoded string. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN225422" ></A ><H2 >范例</H2 ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN225425" ></A ><P ><B >例 1. A <B CLASS="function" >htmlspecialchars_decode()</B > example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />$str </font><font color="#007700">= </font><font color="#DD0000">'<p>this -&gt; &quot;</p>'</font><font color="#007700">;<br /><br />echo </font><font color="#0000BB">htmlspecialchars_decode</font><font color="#007700">(</font><font color="#0000BB">$str</font><font color="#007700">);<br /><br /></font><font color="#FF8000">// note that here the quotes aren't converted<br /></font><font color="#007700">echo </font><font color="#0000BB">htmlspecialchars_decode</font><font color="#007700">(</font><font color="#0000BB">$str</font><font color="#007700">, </font><font color="#0000BB">ENT_NOQUOTES</font><font color="#007700">);<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ><P >上例将输出:</P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="screen" ><p>this -> "</p> <p>this -> &quot;</p></PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN225431" ></A ><H2 >参见</H2 ><P > <P ></P ><TABLE BORDER="0" ><TBODY ><TR ><TD ><A HREF="function.htmlspecialchars.html" ><B CLASS="function" >htmlspecialchars()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.html-entity-decode.html" ><B CLASS="function" >html_entity_decode()</B ></A ></TD ></TR ><TR ><TD ><A HREF="function.get-html-translation-table.html" ><B CLASS="function" >get_html_translation_table()</B ></A ></TD ></TR ></TBODY ></TABLE ><P ></P > </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.htmlentities.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.htmlspecialchars.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >htmlentities</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.strings.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >htmlspecialchars</TD ></TR ></TABLE ></DIV ></BODY ></HTML >