[EDIT] FILE: login.php
<?php session_start(); error_reporting(0); include("config.php"); if(isset($_POST['submit'])) { $username=$_POST['username']; $password=md5($_POST['password']); $ret=mysqli_query($con,"SELECT * FROM admin WHERE username='$username' and password='$password'"); $num=mysqli_fetch_array($ret); if($num>0) { $extra="index.php";// $_SESSION['alogin']=$_POST['username']; $_SESSION['id']=$num['id']; $host=$_SERVER['HTTP_HOST']; $uri=rtrim(dirname($_SERVER['PHP_SELF']),'/\\'); header("location:http://$host$uri/$extra"); exit(); } else { $_SESSION['errmsg']="Invalid username or password"; $extra="login.php"; $host = $_SERVER['HTTP_HOST']; $uri = rtrim(dirname($_SERVER['PHP_SELF']),'/\\'); header("location:http://$host$uri/$extra"); exit(); } } ?> <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>Synergy Telecom</title> <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,400i,700&display=fallback"> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.3.0/css/all.min.css"/> <link rel="stylesheet" href="css/all.min.css"> </head> <body class="hold-transition login-page" > <div class="login-box"> <!-- /.login-logo --> <div class="card card-outline card-primary pt-2 pb-5"> <div class="card-header text-center"> <a href="login.php" class="h3"><b>Synenergy</b></a> </div> <form method="post"> <div class="input-group mb-3"> <input required type="text" name="username" class="form-control" placeholder="Enter UserId"> <div class="input-group-append"> <div class="input-group-text"> <span class="fas fa-envelope"></span> </div> </div> </div> <div class="input-group mb-3"> <input required type="password" name="password" class="form-control" placeholder="Password"> <div class="input-group-append"> <div class="input-group-text"> <span class="fas fa-lock"></span> </div> </div> </div> <span style="color:red;" ><?php echo htmlentities($_SESSION['errmsg']); ?><?php echo htmlentities($_SESSION['errmsg']="");?></span> <div class="row"> <div class="col-12 pt-3"> <button type="submit" name="submit" class="btn btn-primary btn-block">Login</button> </div> <!-- /.col --> </div> </form> </div> <!-- /.card-body --> </div> <!-- /.card --> </div> <!-- /.login-box --> </body> </html>
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