Signal

Requirements

pcntl library is REQUIRED for this to work.

Trapping Signals

// Simple message trap
Signal::trap(Signal::USR2, function()use(){
    echo "caught a signal!";
});

Blocking/Unblocking Signals

// Allows you to effectively ignore POSIX signals from the OS (except for KILL obviously)
Signal::block([Signal::USR2]);
Signal::unblock([Signal::USR2]);