PHP Manual
Semaphore 函数
Inserts or updates a variable in shared memory

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 ( resource $shm_identifier , int $variable_key , mixed $variable ) : bool

shm_put_var() inserts or updates the variable with the given variable_key.

Warnings (E_WARNING level) will be issued if shm_identifier is not a valid SysV shared memory index or if there was not enough shared memory remaining to complete your request.

参数

shm_identifier: A shared memory resource handle as returned by shm_attach()
variable_key: The variable key.
variable: 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。

参见

shm_get_var() - Returns a variable from shared memory
shm_has_var() - Check whether a specific entry exists

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