Pdo\Pgsql::getPid Get the PID of the backend process handling this connection &reftitle.description; public intPdo\Pgsql::getPid Returns the PID of the backend process handling this connection. Note that the PID belongs to a process executing on the database server host, not the local host. &reftitle.parameters; &no.function.parameters; &reftitle.returnvalues; Returns the PID as an int.