Question

我有一个登录系统，我想区分管理员和用户，我的表中有一个字段，取值0或1来区分。问题是我不知道如何进行区分登录，以便稍后我可以对按钮进行一些限制。我如何制定这些限制？

<?php
//short_open_tag = true;
error_reporting(E_ALL); 
ini_set('display_errors', 1);
 if($_POST)
{

$host="xxxxx"; // Host name 
$username="xxxx"; // Mysql username 
$password="xxxxx"; // Mysql password 
$db_name="xxxx"; // Database name 
$tbl_name="utilizador";


// Connect to server and select databse.
$link = mysqli_connect("$host", "$username", "$password")or die("cannot connect"); 
mysqli_select_db($link , $db_name)or die("cannot select DB");


    $tbl_name="utilizador"; // Table name 

    $username = mysqli_real_escape_string( $link , $_POST['username']);
    $encrypted_password = mysqli_real_escape_string( $link ,$_POST['password']);
    $sql="SELECT nome FROM $tbl_name WHERE nome='$username' and  pass='$encrypted_password'";
    $result=mysqli_query($link, $sql);
    $encrypted_password1 = md5($encrypted_password);

    // If result matched $username and $password, table row must be *AT LEAST* 1 row
    if(mysqli_num_rows($result) {
        session_start();
        $_SESSION['user'] = mysqli_fetch_assoc($result);
        $_SESSION['loggedin'] = true;
        $username1 = $_SESSION['user']; 

        header("Location: homepage.php");

    }
    else {
        header("Location: index2.php");

        die;
    } 
}
if (!(isset($_SESSION['user']) && $_SESSION['user'] != ''))
 {

    header ("Location: homepage.php");
}


  $link->close();
   ?>

Answer 1

尝试像这样改变它，不确定它是否有效但是尝试一下：

$sql1="SELECT Admin FROM utilizador WHERE nome='$username1' LIMIT 1";
        global $isAdmin;
        $isAdmin=mysqli_query($link, $sql1);

        if($isAdmin = 1) {
            $isAdmin = true;
        }
        else {
            $isAdmin = false;
        }

然后制作if语句：

<?php if($isAdmin) : ?>

 <a href='paginaUtilizador.php'><h2>Admin</h2></a>

用于区分管理员的登录系统

1 个答案: