PHP shm 组件
(PHP 4, PHP 5, PHP 7, PHP 8)
shm_remove — Removes shared memory from Unix systems
$shm
shm_remove() removes the shared memory shm. All data will be destroyed.
shm
A shared memory segment obtained from shm_attach().
成功时返回 true, 或者在失败时返回 false。
true
false