doujian3132 2018-05-19 06:57
浏览 28

使用php文件访问MySQL数据库

I have a MySQL database and I am trying to figure out how to access it with a php file. I keep getting an error, so I was wondering if that was because my hostname is incorrect. If so, could anyone help me identify exactly what it is? The database is hosted on this website: https://christopherliao2002.000webhostapp.com/.

Below is my HTML code.

    <?php
    //Step1
    $db = mysqli_connect('localhost','***********','password','******')
    or die('Error connecting to MySQL server.');    
    ?>

<html>
 <head>
 </head>
 <body>
 <h1>PHP connect to MySQL</h1>
<?php
//Variables
    $servername = "localhost";
    $username = "*****";
    $password = "****";
    $dbname = "******";

    //Connection to database
    $conn = new mysqli($servername, $username, $password, $dbname);

    //Test connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
echo "Connected successfully";


</body>
</html>
  • 写回答

3条回答 默认 最新

  • doupai5450 2018-05-19 07:03
    关注

    Try this without the try / catch:

        //Variables
        $servername = "localhost";
        $username = "username";
        $password = "password";
        $dbname = "database_name";
    
        //Connection to database
        $conn = new mysqli($servername, $username, $password, $dbname);
    
        //Test connection
        if (!$conn) {
            die("Connection failed: " . mysqli_connect_error());}
    

    Reference: https://www.w3schools.com/php/php_mysql_connect.asp

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