(PHP 4 >= 4.1.0, PHP 5)
pcntl_wtermsig — Returns the signal which caused the child to terminate
Returns the number of the signal that caused the child process to terminate. This function is only useful if pcntl_wifsignaled() returned TRUE.
status 인수는 pnctl_waitpid()의 성공적인 호출이 제공하는 status 인수입니다.
Returns the signal number, as an integer.