PHP5中文手册·Release a semaphore -- 追寻梦想＞编程乐园＞PHP 编程

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.

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

如果成功则返回 TRUE，失败则返回 FALSE。


	PHP5中文手册 sem_get sem_remove Semaphore PHP Manual sem_release (PHP 4, PHP 5) sem_release — Release a semaphore 说明 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. After releasing the semaphore, sem_acquire() may be called to re-acquire it. 参数 `sem_identifier` 返回值如果成功则返回 `TRUE`，失败则返回 `FALSE`。参见 sem_get() sem_acquire() sem_get sem_remove Semaphore PHP Manual

sem_release