PHP Manual
Semaphore 函数
Disconnects from shared memory segment

shm_detach

(PHP 4, PHP 5, PHP 7)

shm_detach — Disconnects from shared memory segment

说明

shm_detach ( resource $shm_identifier ) : bool

shm_detach() disconnects from the shared memory given by the shm_identifier created by shm_attach(). Remember, that shared memory still exist in the Unix system and the data is still present.

参数

shm_identifier: A shared memory resource handle as returned by shm_attach()

返回值

shm_detach() always returns TRUE.

参见

shm_attach() - Creates or open a shared memory segment
shm_remove() - Removes shared memory from Unix systems
shm_remove_var() - Removes a variable from shared memory

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