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This document uses PHP Chinese website manual Release
(PHP 5 >= 5.3.0)
shm_has_var — Check whether a specific entry exists
$shm_identifier
, int $variable_key
)Checks whether a specific key exists inside a shared memory segment.
shm_identifier
Shared memory segment, obtained from shm_attach() .
variable_key
The variable key.
Returns TRUE
if the entry exists, otherwise FALSE