Pada PHP 5.3.13 / MySQL 5.5.21 kode berikut tidak berfungsi: if($check_custom_fields_form!=1){ $sql = "CREATE TABLE IF NOT EXISTS ". $table_custom_fields_form ." ( `form_name` longtext NOT NULL, `field_id` bigint(20) NOT NULL, FOREIGN KEY (`field_id`) REFERENCES $table_custom_fields (`ID`) ON...