php man page for dba_exists

DBA_EXISTS(3)								 1							     DBA_EXISTS(3)

dba_exists - Check whether key exists

SYNOPSIS
       bool dba_exists (string	$key, resource	$handle)

DESCRIPTION
       dba_exists(3) checks whether the specified $key exists in the database.

PARAMETERS
	      o $key
		- The key the check is performed for.

	      o $handle
		- The database handler, returned by dba_open(3) or dba_popen(3).

RETURN VALUES
	Returns TRUE if the key exists, FALSE otherwise.

SEE ALSO
       dba_delete(3), dba_fetch(3), dba_insert(3), dba_replace(3).

PHP Documentation Group 													     DBA_EXISTS(3)