Php/docs/function.shm-put-var
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shm_put_var
(PHP 4, PHP 5, PHP 7)
shm_put_var — Inserts or updates a variable in shared memory
说明
shm_put_var
( SysvSharedMemory $shm
, int $key
, mixed $value
) : bool
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
