$mysql_cmd = $mysql .
' -h ' . $dburl['host'] .
+ (empty($dburl['port']) ? '' : " -P{$dburl['port']} ") .
' -u' . escapeshellarg($dburl['user']) .
(!empty($dburl['pass']) ? ' -p' . escapeshellarg($dburl['pass']) : '') .
' ' . basename($dburl['path']);