function.yaz-ccl-parse.html
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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>Invoke CCL Parser</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="function.yaz-ccl-conf.html">yaz_ccl_conf</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.yaz-close.html">yaz_close</a></div> <div class="up"><a href="ref.yaz.html">YAZ Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.yaz-ccl-parse" class="refentry"> <div class="refnamediv"> <h1 class="refname">yaz_ccl_parse</h1> <p class="verinfo">(PHP 4 >= 4.0.5, PECL yaz:0.9-1.0.9)</p><p class="refpurpose"><span class="refname">yaz_ccl_parse</span> — <span class="dc-title">Invoke CCL Parser</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><b><b>yaz_ccl_parse</b></b></span> ( <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$id</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter">$query</tt></span> , <span class="methodparam"><span class="type">array</span> <tt class="parameter reference">&$result</tt></span> )</div> <p class="para rdfs-comment"> This function invokes a CCL parser. It converts a given CCL FIND query to an RPN query which may be passed to the <a href="function.yaz-search.html" class="function">yaz_search()</a> function to perform a search. </p> <p class="para"> To define a set of valid CCL fields call <a href="function.yaz-ccl-conf.html" class="function">yaz_ccl_conf()</a> prior to this function. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">id</tt></i></span> <dd> <p class="para"> The connection resource returned by <a href="function.yaz-connect.html" class="function">yaz_connect()</a>. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">query</tt></i></span> <dd> <p class="para"> The CCL FIND query. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">result</tt></i></span> <dd> <p class="para"> If the function was executed successfully, this will be an array containing the valid RPN query under the key <i>rpn</i>. </p> <p class="para"> Upon failure, three indexes are set in this array to indicate the cause of failure: <ul class="itemizedlist"> <li class="listitem"> <p class="para"> <i>errorcode</i> - the CCL error code (integer) </p> </li> <li class="listitem"> <p class="para"> <i>errorstring</i> - the CCL error string </p> </li> <li class="listitem"> <p class="para"> <i>errorpos</i> - approximate position in query of failure (integer is character position) </p> </li> </ul> </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <b><tt>TRUE</tt></b> on success or <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <div class="example"> <p><b>Example #1 CCL Parsing</b></p> <div class="example-contents"><p> We will try to search using CCL. In the example below, <i>$ccl</i> is a CCL query. </p></div> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /><br />yaz_ccl_conf</span><span style="color: #007700">(</span><span style="color: #0000BB">$id</span><span style="color: #007700">, </span><span style="color: #0000BB">$fields</span><span style="color: #007700">); </span><span style="color: #FF8000">// see example for yaz_ccl_conf<br /></span><span style="color: #007700">if (!</span><span style="color: #0000BB">yaz_ccl_parse</span><span style="color: #007700">(</span><span style="color: #0000BB">$id</span><span style="color: #007700">, </span><span style="color: #0000BB">$ccl</span><span style="color: #007700">, &</span><span style="color: #0000BB">$cclresult</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #DD0000">'Error: ' </span><span style="color: #007700">. </span><span style="color: #0000BB">$cclresult</span><span style="color: #007700">[</span><span style="color: #DD0000">"errorstring"</span><span style="color: #007700">];<br />} else {<br /> </span><span style="color: #0000BB">$rpn </span><span style="color: #007700">= </span><span style="color: #0000BB">$cclresult</span><span style="color: #007700">[</span><span style="color: #DD0000">"rpn"</span><span style="color: #007700">];<br /> </span><span style="color: #0000BB">yaz_search</span><span style="color: #007700">(</span><span style="color: #0000BB">$id</span><span style="color: #007700">, </span><span style="color: #DD0000">"rpn"</span><span style="color: #007700">, </span><span style="color: #0000BB">$rpn</span><span style="color: #007700">);<br />}<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.yaz-ccl-conf.html">yaz_ccl_conf</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.yaz-close.html">yaz_close</a></div> <div class="up"><a href="ref.yaz.html">YAZ Functions</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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