shm_has_var Check whether a specific entry exists


shm_has_var

(PHP 5 >= 5.3.0)

shm_has_varCheck whether a specific entry exists

说明

bool shm_has_var ( resource $shm_identifier , int $variable_key )

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

参数

shm_identifier

Shared memory segment, obtained from shm_attach().

variable_key

The variable key.

返回值

Returns TRUE if the entry exists, otherwise FALSE

参见


«  shm_get_var
» shm_put_var
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