How to execute command with parameters?

See if this works (sorry can't test it right now)

Runtime.getRuntime().exec(new String[]{"php","/var/www/script.php", "-m", "2"});

Use ProcessBuilder instead of Runtime#exec().

ProcessBuilder pb = new ProcessBuilder("php", "/var/www/script.php", "-m 2");
Process p = pb.start();

The following should work fine.

Process p = Runtime.getRuntime().exec("php /var/www/script.php -m 2");