shm_has_var
shm_has_var
(PHP 5 >= 5.3.0, PHP 7)
shm_has_var — Check whether a specific entry exists
Description
bool shm_has_var ( resource $shm_identifier , int $variable_key )
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
← shm_get_var
shm_put_var →
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