function.pg-convert.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>Convert associative array values into suitable for SQL statement</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-connection-status.html">pg_connection_status</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.pg-copy-from.html">pg_copy_from</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-convert" class="refentry"> <div class="refnamediv"> <h1 class="refname">pg_convert</h1> <p class="verinfo">(PHP 4 >= 4.3.0, PHP 5)</p><p class="refpurpose"><span class="refname">pg_convert</span> — <span class="dc-title"> Convert associative array values into suitable for SQL statement </span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">array</span> <span class="methodname"><b><b>pg_convert</b></b></span> ( <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$connection</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter">$table_name</tt></span> , <span class="methodparam"><span class="type">array</span> <tt class="parameter">$assoc_array</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$options</tt></span> ] )</div> <p class="para rdfs-comment"> <b>pg_convert()</b> checks and converts the values in <i><tt class="parameter">assoc_array</tt></i> into suitable values for use in a SQL statement. Precondition for <b>pg_convert()</b> is the existence of a table <i><tt class="parameter">table_name</tt></i> which has at least as many columns as <i><tt class="parameter">assoc_array</tt></i> has elements. The fieldnames in <i><tt class="parameter">table_name</tt></i> must match the indices in <i><tt class="parameter">assoc_array</tt></i> and the corresponding datatypes must be compatible. Returns an array with the converted values on success, <b><tt>FALSE</tt></b> otherwise. </p> <blockquote><p><b class="note">Note</b>: If there are boolean fields in <i><tt class="parameter">table_name</tt></i> don't use the constant <b><tt>TRUE</tt></b> in <i><tt class="parameter">assoc_array</tt></i>. It will be converted to the string 'TRUE' which is no valid entry for boolean fields in PostgreSQL. Use one of t, true, 1, y, yes instead. <br /> </p></blockquote> <div class="warning"><b class="warning">Warning</b><p class="simpara">This function is<em class="emphasis">EXPERIMENTAL</em>. The behaviour of this function, its name, andsurrounding documentation may change without notice in a future release of PHP.This function should be used at your own risk.</p></div> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">connection</tt></i></span> <dd> <p class="para"> PostgreSQL database connection resource. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">table_name</tt></i></span> <dd> <p class="para"> Name of the table against which to convert types. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">assoc_array</tt></i></span> <dd> <p class="para"> Data to be converted. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">options</tt></i></span> <dd> <p class="para"> Any number of <b><tt>PGSQL_CONV_IGNORE_DEFAULT</tt></b>, <b><tt>PGSQL_CONV_FORCE_NULL</tt></b> or <b><tt>PGSQL_CONV_IGNORE_NOT_NULL</tt></b>, combined. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> An <a href="language.types.array.html" class="type array">array</a> of converted values, or <b><tt>FALSE</tt></b> on error. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>pg_convert()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php <br /> $dbconn </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'dbname=foo'</span><span style="color: #007700">);<br /> <br /> </span><span style="color: #0000BB">$tmp </span><span style="color: #007700">= array(<br /> </span><span style="color: #DD0000">'author' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'Joe Thackery'</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">'year' </span><span style="color: #007700">=> </span><span style="color: #0000BB">2005</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">'title' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'My Life, by Joe Thackery'<br /> </span><span style="color: #007700">);<br /> <br /> </span><span style="color: #0000BB">$vals </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_convert</span><span style="color: #007700">(</span><span style="color: #0000BB">$dbconn</span><span style="color: #007700">, </span><span style="color: #DD0000">'authors'</span><span style="color: #007700">, </span><span style="color: #0000BB">$tmp</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span></span></code></div> </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-meta-data.html" class="function" rel="rdfs-seeAlso">pg_meta_data()</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-connection-status.html">pg_connection_status</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.pg-copy-from.html">pg_copy_from</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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