<?php
 $db_name = "資料庫名稱";
 $mysql_userName = "使用者名稱";
 $mysql_password = "密碼";
 $server_name = "資料庫host";
 $conn = mysqli_connect($server_name,$mysql_userName,$mysql_password,$db_name);
 if($conn){
 echo "connection success";
 }
 else{
 echo "connection not success";
 }
?>