Checking if process still running?

Question

As a way to build a poor-man\'s watchdog and make sure an application is restarted in case it crashes (until I figure out why), I need to write a PHP CLI script that will be

Answer 1

Try this one

function processExists ($pid) {
    return file_exists("/proc/{$pid}");
}

Function checks whether process file is exists in /proc/ root directory. Works for Linux only