(PHP3 >= 3.0.6, PHP4 )

sem_release -- Release a semaphore


int sem_release (int sem_identifier)

Returns: true on success, false on error.

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

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

See also: sem_get() and sem_acquire().

Note: This function does not work on Windows systems