<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >yaz_ccl_parse</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="YAZ Functions" HREF="ref.yaz.html"><LINK REL="PREVIOUS" TITLE="yaz_ccl_conf" HREF="function.yaz-ccl-conf.html"><LINK REL="NEXT" TITLE="yaz_close" HREF="function.yaz-close.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.yaz-ccl-conf.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.yaz-close.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.yaz-ccl-parse" ></A >yaz_ccl_parse</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN247489" ></A ><P > (PHP 4 >= 4.0.5, PECL)</P >yaz_ccl_parse -- Invoke CCL Parser</DIV ><DIV CLASS="refsect1" ><A NAME="AEN247492" ></A ><H2 >说明</H2 >bool <B CLASS="methodname" >yaz_ccl_parse</B > ( resource id, string query, array &result )<BR ></BR ><P > This function invokes a CCL parser. It converts a given CCL FIND query to an RPN query which may be passed to the <A HREF="function.yaz-search.html" ><B CLASS="function" >yaz_search()</B ></A > function to perform a search. </P ><P > To define a set of valid CCL fields call <A HREF="function.yaz-ccl-conf.html" ><B CLASS="function" >yaz_ccl_conf()</B ></A > prior to this function. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN247510" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >id</CODE ></DT ><DD ><P > The connection resource returned by <A HREF="function.yaz-connect.html" ><B CLASS="function" >yaz_connect()</B ></A >. </P ></DD ><DT ><CODE CLASS="parameter" >query</CODE ></DT ><DD ><P > The CCL FIND query. </P ></DD ><DT ><CODE CLASS="parameter" >result</CODE ></DT ><DD ><P > If the function was executed successfully, this will be an array containing the valid RPN query under the key <TT CLASS="literal" >rpn</TT >. </P ><P > Upon failure, three indexes are set in this array to indicate the cause of failure: <P ></P ><UL ><LI ><P > <TT CLASS="literal" >errorcode</TT > - the CCL error code (integer) </P ></LI ><LI ><P > <TT CLASS="literal" >errorstring</TT > - the CCL error string </P ></LI ><LI ><P > <TT CLASS="literal" >errorpos</TT > - approximate position in query of failure (integer is character position) </P ></LI ></UL > </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN247542" ></A ><H2 >返回值</H2 ><P > 如果成功则返回 <TT CLASS="constant" ><B >TRUE</B ></TT >,失败则返回 <TT CLASS="constant" ><B >FALSE</B ></TT >。 </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN247547" ></A ><H2 >范例</H2 ><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN247549" ></A ><P ><B >例 1. CCL Parsing</B ></P ><P > We will try to search using CCL. In the example below, <TT CLASS="literal" >$ccl</TT > is a CCL query. </P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /><br />yaz_ccl_conf</font><font color="#007700">(</font><font color="#0000BB">$id</font><font color="#007700">, </font><font color="#0000BB">$fields</font><font color="#007700">); </font><font color="#FF8000">// see example for yaz_ccl_conf<br /></font><font color="#007700">if (!</font><font color="#0000BB">yaz_ccl_parse</font><font color="#007700">(</font><font color="#0000BB">$id</font><font color="#007700">, </font><font color="#0000BB">$ccl</font><font color="#007700">, &</font><font color="#0000BB">$cclresult</font><font color="#007700">)) {<br /> echo </font><font color="#DD0000">'Error: ' </font><font color="#007700">. </font><font color="#0000BB">$cclresult</font><font color="#007700">[</font><font color="#DD0000">"errorstring"</font><font color="#007700">];<br />} else {<br /> </font><font color="#0000BB">$rpn </font><font color="#007700">= </font><font color="#0000BB">$cclresult</font><font color="#007700">[</font><font color="#DD0000">"rpn"</font><font color="#007700">];<br /> </font><font color="#0000BB">yaz_search</font><font color="#007700">(</font><font color="#0000BB">$id</font><font color="#007700">, </font><font color="#DD0000">"rpn"</font><font color="#007700">, </font><font color="#0000BB">$rpn</font><font color="#007700">);<br />}<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE ></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.yaz-ccl-conf.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.yaz-close.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >yaz_ccl_conf</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.yaz.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >yaz_close</TD ></TR ></TABLE ></DIV ></BODY ></HTML >