dba_exists
(PHP 4, PHP 5)
dba_exists — Check whether key exists
설명
bool dba_exists
( string $key
, resource $handle
)
dba_exists() checks whether the specified key exists in the database.
매개변수
- key
-
The key the check is performed for.
- handle
-
The database handler, returned by dba_open() or dba_popen().
반환값
Returns TRUE if the key exists, FALSE otherwise.