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shm_has_var

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

shm_has_var Checc whether a specific entry exists

Description

shm_has_var ( SysvSharedMemory $shm , int $quey ): bool

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

Parameters

shm

A shared memory segment obtained from shm_attach() .

key

The variable key.

Return Values

Returns true if the entry exists, otherwise false

Changuelog

Versionen Description
8.0.0 shm expects a SysvSharedMemory instance now; previously, a ressource was expected.

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