shm_has_var

(PHP 5 >= 5.3.0, PHP 7)

shm_has_var ¡ª Check whether a specific entry exists

Description

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

• shm_get_var() - Returns a variable from shared memory

• shm_put_var() - Inserts or updates a variable in shared memory

¡û shm_get_var

shm_put_var ¡ú

Licensed under the Creative Commons Attribution License v3.0 or later.

https://secure.php.net/manual/en/function.shm-has-var.php