shm_remove_var

(PHP 4, PHP 5, PHP 7, PHP 8)

shm_remove_var — Removes a variable from shared memory

说明

shm_remove_var(SysvSharedMemory $shm, int $key): bool

Removes a variable with a given key and frees the occupied memory.

参数

shm

A shared memory segment obtained from shm_attach().

key

The variable key.

返回值

成功时返回 true， 或者在失败时返回 false。

更新日志

版本 说明
8.0.0 shm expects a SysvSharedMemory instance now; previously, a resource was expected.

参见