pcntl_wstopsigDescriptionint pcntl_wstopsig ( int status )Returns the number of the signal which caused the child to stop. This function is only useful if pcntl_wifstopped() returned TRUE. status 参数是提供给成功调用的 pcntl_waitpid() 函数的状态参数。 See also pcntl_waitpid() and pcntl_wifstopped().
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