(PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8)
pcntl_wifsignaled — Checks whether the status code represents a termination due to a signal
Checks whether the child process exited because of a signal which was not caught.
statusIl parametro 
status è il parametro di stato fornito ad una chiamata 
riuscita a pcntl_waitpid().
   Returns true if the child process exited because of a signal which was
   not caught, false otherwise.
  
