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Latest Version [8.00202205221] Last Updated [May-22-2022]

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PHP Manual [shm_has_var]

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PHP Manual || Semaphore Functions

(PHP 5 >= 5.3.0, PHP 7)

shm_has_varCheck whether a specific entry exists

Description

shm_has_var ( resource $shm_identifier , int $variable_key ) : bool

Checks whether a specific key exists inside a shared memory segment.

Parameters

shm_identifier

Shared memory segment, obtained from shm_attach().

variable_key

The variable key.

Return Values

Returns TRUE if the entry exists, otherwise FALSE

See Also



PHP Manual || Semaphore Functions