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

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

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