PHP mysqli_get_proto_info() 函数

实例

返回 MySQL 协议版本：

 <?php
 $con=mysqli_connect("localhost","my_user","my_password","my_db");
 // Check connection
 if (mysqli_connect_errno($con))
 {
 echo "Failed to connect to MySQL: " . mysqli_connect_error();
 }

echo mysqli_get_proto_info($con);

mysqli_close($con);
 ?>