Fetch the first column of the first row of data returned from
a query. The function takes care of doing the query and freeing
the results when finished.
Parameter
string
$query
the SQL query or the statement to
prepare
string
$type
if supplied, the type of the cell in the result set will be set for fetching
Return value
mixed - the returned value or
a MDB_Error, if fail
Check the database related section of
PHP-Manual
to detect the reason for this error. In the most cases
a misformed SQL statment. Ie. using LIMIT in a SQL-Statment
for an Oracle database.