variables[$var_name])) { return $this->variables[$var_name]; } return false; } function put($var_name, $value, $ttl = 0) { $this->variables[$var_name] = $value; } function load() { } function unload() { } function save() { } function tidy() { } function purge() { } function destroy($var_name, $table = '') { } public function _exists($var_name) { } public function sql_load($query) { } public function sql_save($query, &$query_result, $ttl) { } public function sql_exists($query_id) { } public function sql_fetchrow($query_id) { } public function sql_fetchfield($query_id, $field) { } public function sql_rowseek($rownum, $query_id) { } public function sql_freeresult($query_id) { } }