📄 function.pg-copy-to.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>Copy a table to an array</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-copy-from.html">pg_copy_from</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.pg-dbname.html">pg_dbname</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-copy-to" class="refentry"> <div class="refnamediv"> <h1 class="refname">pg_copy_to</h1> <p class="verinfo">(PHP 4 >= 4.2.0, PHP 5)</p><p class="refpurpose"><span class="refname">pg_copy_to</span> — <span class="dc-title"> Copy a table to an array </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_copy_to</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">string</span> <tt class="parameter">$delimiter</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter">$null_as</tt></span> ]] )</div> <p class="para rdfs-comment"> <b>pg_copy_to()</b> copies a table to an array. It issues <i>COPY TO</i> SQL command internally to retrieve records. </p> </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 from which to copy the data into <i><tt class="parameter">rows</tt></i>. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">delimiter</tt></i></span> <dd> <p class="para"> The token that separates values for each field in each element of <i><tt class="parameter">rows</tt></i>. Default is <i>TAB</i>. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">null_as</tt></i></span> <dd> <p class="para"> How SQL <i>NULL</i> values are represented in the <i><tt class="parameter">rows</tt></i>. Default is \N ("\\N"). </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> with one element for each line of <i>COPY</i> data. It returns <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>pg_copy_to()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /> $db </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"dbname=publisher"</span><span style="color: #007700">) or die(</span><span style="color: #DD0000">"Could not connect"</span><span style="color: #007700">);<br /> <br /> </span><span style="color: #0000BB">$rows </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_copy_to</span><span style="color: #007700">(</span><span style="color: #0000BB">$db</span><span style="color: #007700">, </span><span style="color: #0000BB">$table_name</span><span style="color: #007700">);<br /> <br /> </span><span style="color: #0000BB">pg_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$db</span><span style="color: #007700">, </span><span style="color: #DD0000">"DELETE FROM $table_name"</span><span style="color: #007700">);<br /> <br /> </span><span style="color: #0000BB">pg_copy_from</span><span style="color: #007700">(</span><span style="color: #0000BB">$db</span><span style="color: #007700">, </span><span style="color: #0000BB">$table_name</span><span style="color: #007700">, </span><span style="color: #0000BB">$rows</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-copy-from.html" class="function" rel="rdfs-seeAlso">pg_copy_from()</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-copy-from.html">pg_copy_from</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.pg-dbname.html">pg_dbname</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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