shm_put_var

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

shm_put_var — Inserts or updates a variable in shared memory

Description

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.

Parameters

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.

Return Values

Returns true on success or false on failure.

Changelog

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

See Also