(PHP 4 >= 4.0.1, PHP 5, PHP 7, PHP 8)
pg_untrace — 禁用 PostgreSQL 连接的追踪
connectionAn PgSql\Connection instance.
When connection is null, the default connection is used.
The default connection is the last connection made by pg_connect()
or pg_pconnect().
As of PHP 8.1.0, using the default connection is deprecated.
   总是返回 true。
  
| 版本 | 说明 | 
|---|---|
| 8.2.0 | 现在返回类型为 true;之前是 bool。 | 
| 8.1.0 | 现在 connection参数接受 PgSql\Connection
  实例,之前接受 resource。 | 
| 8.0.0 | connection现在可为 null。 | 
示例 #1 pg_untrace() 示例
<?php
$pgsql_conn = pg_connect("dbname=mark host=localhost");
if ($pgsql_conn) {
   pg_trace('/tmp/trace.log', 'w', $pgsql_conn);
   pg_query("SELECT 1");
   pg_untrace($pgsql_conn);
   // Now tracing of backend communication is disabled
} else {
   print pg_last_error($pgsql_conn);
   exit;
}
?>