public static function connect($sDb = null, $sHost = null, $sUser = null, $sPass = null)
{
self::disconnect();
$sHost = $sHost ? $sHost : M::DB_HOST();
$sUser = $sUser ? $sUser : M::DB_USER();
$sPass = $sPass ? $sPass : M::DB_PASSWORD();
$sDb = $sDb ? $sDb : M::DB_NAME();
self::$_oDb = new mysqli($sHost, $sUser, $sPass, $sDb);
self::$_oDb->set_charset('utf8');
if (self::$_oDb->connect_errno) {
switch (self::$_oDb->connect_errno) {
case 2002:
throw new Exception('Mysql error: MYSQL SERVER IS DOWN');
default:
throw new Exception('Mysql error: (' . self::$_oDb->connect_errno . ') ' . self::$_oDb->connect_error);
}
}
}