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

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