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이 문서에서는 PHP 중국어 웹사이트 매뉴얼 풀어 주다
(PECL sync >= 1.0.0)
A cross-platform, native implementation of named and unnamed sempahore objects.
A semaphore restricts access to a limited resource to a limited number of instances. Semaphores differ from mutexes in that they can allow more than one instance to access a resource at one time while a mutex only allows one instance at a time.
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[, integer $initialval
[, bool $autounlock
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