Question

我正在尝试使用php脚本连接到数据库，但它无法正常工作，但出现此错误：我尝试将mysql更改为mysqli，但我也无法正常工作

致命错误：未捕获错误：调用/storage/ssd3/564/6656564/public_html/login.php:8中的未定义函数mysql_connect（）堆栈跟踪：＃0 {main}抛出于/ storage / ssd3 / 564 /第6行的6656564 / public_html / login.php

这是我的php代码

<?php
    // Database Things =========================================================
//These values can be found in the email.
    $host = "localhost"; //<--put your host here
    $user = "******"; //<-- put username here
    $password = "R*****"; //<--put your password here
    $dbname = "id6*****_users"; //<-- put your database name here
    mysql_connect($host, $user, $password) or die("Cant connect into database");
    mysql_select_db($dbname)or die("Cant connect into database");   
    // =============================================================================
    $Act = $_GET["Act"];// what is action, Login or Register?
    $nick = $_GET["User"];
    $pass = $_GET["Pass"];   
    $Email = $_GET["Email"];    
    if($Act == "Login"){
    if(!$nick || !$pass) {
        echo "Login or password cant be empty.";
        } else {

                 $SQL = "SELECT * FROM Users WHERE Username = '" . $nick . "'";
                $result_id = @mysql_query($SQL) or die("DB ERROR");
                $total = mysql_num_rows($result_id);
                    if($total) {
                        $datas = @mysql_fetch_array($result_id);
                            if(!strcmp($pass, $datas["Password"])) {
                                echo "Correct";
                            } else {
                                echo "Wrong";
                            }
                    } else {
                        echo "No User";
                }

    }
    }
   if($Act == "Register"){

        $checkuser = mysql_query("SELECT Username FROM Users WHERE Username='$nick'"); 
        $username_exist = mysql_num_rows($checkuser);
        if($username_exist > 0)
        {
              echo "TAKEN";// Username is taken

              unset($nick);
              exit();
        }else{
            $query = "INSERT INTO Users (Username, Password,Email) VALUES('$nick', '$pass', '$Email')";
            mysql_query($query) or die("ERROR");
            mysql_close();
            echo "Registered";
        }
    }
    // Close mySQL Connection
    mysql_close();
    ?>

如果有人可以帮助我，那将很棒

Answer 1

如果要连接到本地数据库，请使用此变量

$host     = "localhost"; //<--put your host here 
$user     = ""; //<--put your db username here
$password = ""; //<--put your db password here
$dbname   = put your database name here in string
mysql_connect($host, $user, $password) or die("Cant connect into database");
mysql_select_db($dbname)or die("Cant connect into database");

如果要使用服务器数据库连接到站点，请使用此

登录到您的Cpanel
登录后转到Mysql＆Databses
创建数据库（databse_name）
接下来创建一个用户（输入您的db_user，db_password）
将用户连接到数据库（从下拉列表中选择）

$host = "localhost"; //<--put your host here $user = $db_user; $password = $db_password ; $dbname = $databse_name; mysql_connect($host, $user, $password) or die("Cant connect into database"); mysql_select_db($dbname)or die("Cant connect into database");

MYSQL连接数据库错误

1 个答案: