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