Warning: mysqli::mysqli(): (HY000/2002): Only one usage of each socket address (protocol/network address/port) is normally permitted. in C:\xampp\htdocs\iro\db_config.php on line 12

Warning: mysqli_set_charset(): Couldn't fetch mysqli in C:\xampp\htdocs\iro\db_config.php on line 13
Connection failed: Only one usage of each socket address (protocol/network address/port) is normally permitted.