检查数据库连接，否则显示消息 [英] Check for database connection, otherwise display message

问题描述

我想检查网站是否可以连接到mySQL.如果没有，我想显示一个错误，提示用户应在几分钟后尝试再次访问该页面...

I would like to check if the website can connect to mySQL. If not, I would like to display an error saying that the user should try to access the page again in a few minutes...

我真的不知道该怎么做;)

I really do not know how to do this ;)

任何帮助将不胜感激！

string mysql_error ([ resource $link_identifier ] )

但是我该如何使用呢?

这只是给我错误，但我希望消息显示有任何错误.

This just gives me the error, but I want the message to display with any error.

谢谢

推荐答案

尝试一下:

<?php
$servername   = "localhost";
$database = "database";
$username = "user";
$password = "password";

// Create connection
$conn = new mysqli($servername, $username, $password, $database);
// Check connection
if ($conn->connect_error) {
   die("Connection failed: " . $conn->connect_error);
}
  echo "Connected successfully";
?>

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