(PHP 3>= 3.0.6, PHP 4 , PHP 5)

sem_release -- Release a semaphore


bool sem_release ( resource sem_identifier)

sem_release() releases the semaphore if it is currently acquired by the calling process, otherwise a warning is generated.

Returns TRUE on success or FALSE on failure.

After releasing the semaphore, sem_acquire() may be called to re-acquire it.

See also sem_get() and sem_acquire().

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