Ԥ���峣��

���г����ɴ���չ���壬�ҽ��ڴ���չ������ PHP ��������ʱ��̬����ʱ���á�

System V message constants
Constant Type Changelog
MSG_IPC_NOWAIT integer  
MSG_EAGAIN integer As of 5.2.0
MSG_ENOMSG integer As of 5.2.0
MSG_NOERROR integer  
MSG_EXCEPT integer