(PHP 4 >= 4.1.0)
pcntl_wifstopped -- Returns TRUE if child process is currently stoppedReturns TRUE if the child process which caused the return is currently stopped; this is only possible if the call to pcntl_waitpid() was done using the option WUNTRACED.
The parameter status is the status parameter supplied to a successfull call to pcntl_waitpid().
See also pcntl_waitpid().