shm_put_var
PHP function
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(PHP 4, PHP 5, PHP 7, PHP 8)
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
shmA shared memory segment obtained from
shm_attach().keyThe variable key.
valueThe 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
Success
Changelog
| Version | Description |
|---|---|
| 8.0.0 | shm expects a SysvSharedMemory instance now; previously, a resource was expected. |