static function getInstance() { if (!isset(self::$instance)) { self::$instance = new DBMySQLi(DB_HOST, DB_USER, DB_PASS, DB_NAME); } return self::$instance; }
public function setMySQL() { $mysqli = DBMySQLi::getInstance(); if (!$mysqli->dbh) { $this->error('系统繁忙,请稍候再试', '/index.php'); } Record::connection($mysqli); }