PHP login "invalid username and password"

Juhi Davda

I'm trying to create a simple php login system. And even if the username & password exists in the database, it doesn't work but shows "invalid username & password" error message.

<?php
session_start();

    $con=mysqli_connect("localhost","root","");
    mysqli_select_db($con,"server2go");

    if(mysqli_connect_errno())
        echo "<h2>Failed to connect to MySQL database!".mysqli_connect_errno();

    if(isset($_POST['submit']))
    {   
        $username=$_POST['username'];
        $password=$_POSt['password'];   

        $sql=mysqli_query($con, "SELECT username FROM userlogin WHERE username='$username' AND     password='$password' limit 1 ");

        if(mysqli_num_rows($sql)==1)
        {                           
            $data=mysqli_fetch_array($sql,1);
            $_SESSION['username']=$data['username'];
            header("location:dashboard.php");               
        }
        else             
            $error="Invalid username or password!";         
    }
?>

What am I doing wrong here?

Maciej Asembler

Change

$password=$_POSt['password'];

to

$password=$_POST['password'];

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