function.pg-result-status.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>Get status of query result</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.pg-result-seek.html">pg_result_seek</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.pg-select.html">pg_select</a></div> <div class="up"><a href="ref.pgsql.html">PostgreSQL Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.pg-result-status" class="refentry"> <div class="refnamediv"> <h1 class="refname">pg_result_status</h1> <p class="verinfo">(PHP 4 >= 4.2.0, PHP 5)</p><p class="refpurpose"><span class="refname">pg_result_status</span> — <span class="dc-title"> Get status of query result </span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <span class="methodname"><b><b>pg_result_status</b></b></span> ( <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$result</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$type</tt></span> ] )</div> <p class="para rdfs-comment"> <b>pg_result_status()</b> returns the status of a result resource, or the PostgreSQL command completion tag associated with the result </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">result</tt></i></span> <dd> <p class="para"> PostgreSQL query result resource, returned by <a href="function.pg-query.html" class="function">pg_query()</a>, <a href="function.pg-query-params.html" class="function">pg_query_params()</a> or <a href="function.pg-execute.html" class="function">pg_execute()</a> (among others). </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">type</tt></i></span> <dd> <p class="para"> Either <b><tt>PGSQL_STATUS_LONG</tt></b> to return the numeric status of the <i><tt class="parameter">result</tt></i>, or <b><tt>PGSQL_STATUS_STRING</tt></b> to return the command tag of the <i><tt class="parameter">result</tt></i>. If not specified, <b><tt>PGSQL_STATUS_LONG</tt></b> is the default. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Possible return values are <b><tt>PGSQL_EMPTY_QUERY</tt></b>, <b><tt>PGSQL_COMMAND_OK</tt></b>, <b><tt>PGSQL_TUPLES_OK</tt></b>, <b><tt>PGSQL_COPY_OUT</tt></b>, <b><tt>PGSQL_COPY_IN</tt></b>, <b><tt>PGSQL_BAD_RESPONSE</tt></b>, <b><tt>PGSQL_NONFATAL_ERROR</tt></b> and <b><tt>PGSQL_FATAL_ERROR</tt></b> if <b><tt>PGSQL_STATUS_LONG</tt></b> is specified. Otherwise, a <a href="language.types.string.html" class="type string">string</a> containing the PostgreSQL command tag is returned. </p> </div> <div class="refsect1 changelog"> <h3 class="title">ChangeLog</h3> <p class="para"> <table class="informaltable"> <colgroup> <thead valign="middle"> <tr valign="middle"> <th colspan="1">Version</th> <th colspan="1">Description</th> </tr> </thead> <tbody valign="middle" class="tbody"> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">4.3.0</td> <td colspan="1" rowspan="1" align="left"> The <i><tt class="parameter">type</tt></i> parameter was added. </td> </tr> </tbody> </colgroup> </table> </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>pg_result_status()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /><br /></span><span style="color: #FF8000">// Connect to the database<br /></span><span style="color: #0000BB">$conn </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_pconnect</span><span style="color: #007700">(</span><span style="color: #DD0000">"dbname=publisher"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Execute a COPY<br /></span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">"COPY authors FROM STDIN;"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Get the result status<br /></span><span style="color: #0000BB">$status </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_result_status</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Determine status<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">$status </span><span style="color: #007700">== </span><span style="color: #0000BB">PGSQL_COPY_IN</span><span style="color: #007700">)<br /> echo </span><span style="color: #DD0000">"Copy began."</span><span style="color: #007700">;<br />else<br /> echo </span><span style="color: #DD0000">"Copy failed."</span><span style="color: #007700">;<br /> <br /></span><span style="color: #0000BB">?></span></span></code></div> </div> <div class="example-contents"><p>The above example will output:</p></div> <div class="example-contents"><pre><div class="cdata"><pre>Copy began.</pre></div> </pre></div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.pg-connection-status.html" class="function" rel="rdfs-seeAlso">pg_connection_status()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.pg-result-seek.html">pg_result_seek</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.pg-select.html">pg_select</a></div> <div class="up"><a href="ref.pgsql.html">PostgreSQL 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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