php flock lock_ex
2010年9月15日—LOCK_EXmeansEXCLUSIVELOCK.Onlyasingleprocessmaypossessanexclusivelocktoagivenfileatatime.IfthefilehasbeenLOCKEDwith ...,参数·LOCK_SH取得共享锁定(读取的程序)。·LOCK_EX取得独占锁定(写入的程序。·LOCK_UN释放锁定(无论共享或独占)。,2...
SplFileObject::flock
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Parameters¶·LOCK_SHtoacquireasharedlock(reader).·LOCK_EXtoacquireanexclusivelock(writer).·LOCK_UNtoreleasealock(sharedorexclusive).
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