Was ist der Quellcode von conn.php?

Question

Was ist der Quellcode von conn.php?

Answer 1

这个是包含连接数据库的PHP文件，可以这样写

<?php

define('DB_HOST','localhost');
define('DB_USER','root');
define('DB_PSW','连接密码');
define('DB_NAME','数据库名称');
define('DB_CHARSET','utf-8');
$cnn=mysqli_connect(DB_HOST,DB_USER,DB_PSW,DB_NAME);
/*if (!$cnn){
   die("连接数据库失败").mysqli_error($cnn);
}
echo "连接数据库成功";*/
?>