(PHP 4, PHP 5, PHP 7)
shm_remove_var — Removes a variable from shared memory
$shm_identifier
, int $variable_key
)
Removes a variable with a given variable_key
and frees the occupied memory.
shm_identifierThe shared memory identifier as returned by shm_attach()
variable_keyThe variable key.
成功时返回 TRUE， 或者在失败时返回 FALSE。