mysql_connect（不适用于php文件）

Question

不断收到相同的错误消息（警告：mysql_connect（）[function.mysql-connect]：无法通过/ home / content /中的套接字'/var/lib/mysql/mysql.sock'（2）连接到本地MySQL服务器第27行的00/7882800 / html / Connections / dueslogin.php无法连接到数据库！请稍后重试。）

 <?php
        //Variables for connecting to your database.
        //These variable values come from your hosting account.
        $hostname = "TarHeelsDues.db.7882800.hostedresource.com";
        $username = "TarHeelsDues";
        $dbname = "TarHeelsDues";

        //These variable values need to be changed by you before deploying
        $password = "************";
        $usertable = "DuesLogin";
        $yourfield = "your_field";

        //Connecting to your database
        mysql_connect($hostname, $dbname, $password) OR DIE ("Unable to 
        connect to database! Please try again later.");
        mysql_select_db($TarHeelsDues);

        //Fetching from your database table.
        $query = "SELECT * FROM $usertable";
        $result = mysql_query($query);

        if ($result) {
            while($row = mysql_fetch_array($result)) {
                $name = $row["$yourfield"];
                echo "Name: $name<br>";
            }
        }
        ?>

Answer 1

将mysql_connect行更改为

mysql_connect($hostname, $username, $password) OR DIE ("Unable to 
    connect to database! Please try again later.");

mysql_select_db($dbname);

Answer 2

那里有一个小错误，您必须在mysql_connect中使用$ username而不是$ dbname。

 mysql_connect($hostname, $username , $password) OR DIE ("Unable to 
        connect to database! Please try again later.");
        mysql_select_db($TarHeelsDues);

Answer 3

正确的语法应如下所示：

mysql_connect（$ hostname，$ username，$ password）或死（“无法与服务器连接”）； mysql_select_db（$ TarHeelsDues）或die（'无法连接数据库！'）;