I can use pg_get_pid when pgsql connected by pg_connect:
$conn = pg_pconnect("host=localhost port=5432 dbname=test");
$pid = pg_get_pid($conn);
But I need use pg_get_pid when pgsql connected by PDO (Doctrine use it):
$dbh = new PDO('pgsql:host=localhost;dbname=test', $user, $pass);
$pid = pg_get_pid(?);
How to get $conn value for pg_get_pid($conn) function?
You can use sql query: