Hi, i'm using linux and php 5.2.12 i have problem with executing proc_open if i use proc_open('php script.php', $descriptorspec, $pipes); it will show me error sh: /php: No such file or directory if i use proc_open('/usr/bin/php script.php', $descriptorspec, $pipes); or proc_open('php script.php', $descriptorspec, $pipes, '/usr/bin/'); it still show me same error. i have no idea why it always append slash in front of command. any help please? thanks!