Tak proste, jak to jest...
SELECT id,option_key,option_value FROM options
lub
SELECT * FROM options
Możesz to zrobić za pomocą PDO
$dbh = new PDO("mysql:dbname=pages;host=localhost", "username", "password");
$sth = $dbh->prepare('SELECT id,option_key,option_value FROM options');
$sth->execute();