shm_put_var
(PHP 4, PHP 5, PHP 7, PHP 8)
shm_put_var — Inserts or updates a variable in shared memory
说明
shm_put_var() inserts or updates the
value
with the given
key
.
Warnings (E_WARNING
level) will be issued if
shm
is not a valid SysV shared memory
index or if there was not enough shared memory remaining to complete your
request.
参数
-
shm
-
A shared memory segment obtained from shm_attach().
-
key
-
The variable key.
-
value
-
The variable. All variable types that serialize() supports may be used: generally this means all types except for resources and some internal objects that cannot be serialized.
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
- shm_get_var() - Returns a variable from shared memory
- shm_has_var() - Check whether a specific entry exists