I have error in php for my forgot password page.
Fatal error: Uncaught Error: Call to undefined function mysql_fetch_array() in C:\xampp\htdocs\Excin\index.php:56 Stack trace: #0 {main} thrown in C:\xampp\htdocs\Excin\index.php on line 56
Find below php tags. Please help me friends.
`<?php
session_start();
include("dbconnection.php");
if(isset($POST['login']))
{
$adminusername=$POST['username'];
$pass=md5($POST['password']);
$ret=mysqli_query($con,"SELECT * FROM admin WHERE username='$adminusername' and password='$pass'");
$num=mysqli_fetch_array($ret);
if($num>0)
{
$extra="manage-users.php";
$SESSION['login']=$POST['username'];
$SESSION['id']=$num['id'];
echo "<script>window.location.href='".$extra."'</script>";
exit();
}
else
{
$_SESSION['action1']="*Invalid username or password";
$extra="index.php";
echo "<script>window.location.href='".$extra."'</script>";
exit();
}
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="">
<meta name="author" content="Dashboard">
<meta name="keyword" content="Dashboard, Bootstrap, Admin, Template, Theme, Responsive, Fluid, Retina">
<title>Admin | Login</title>
<link href="assets/css/bootstrap.css" rel="stylesheet">
<link href="assets/font-awesome/css/font-awesome.css" rel="stylesheet" />
<link href="assets/css/style.css" rel="stylesheet">
<link href="assets/css/style-responsive.css" rel="stylesheet">
</head>
<body>
<div id="login-page">
<div class="container">
<form class="form-login" action="" method="post">
<h2 class="form-login-heading">sign in now</h2>
<p style="color:#F00; padding-top:20px;" align="center"><?php echo $_SESSION['action1'];?><?php echo $_SESSION['action1']="";?></p>
<div class="login-wrap">
<input type="text" name="username" class="form-control" placeholder="User ID" autofocus>
<br>
<input type="password" name="password" class="form-control" placeholder="Password"><br >
<input name="login" class="btn btn-theme btn-block" type="submit">
</div>
</form>
</div>
</div>
<script src="assets/js/jquery.js"></script>
<script src="assets/js/bootstrap.min.js"></script>
<script type="text/javascript" src="assets/js/jquery.backstretch.min.js"></script>
<script>
$.backstretch("assets/img/login-bg.jpg", {speed: 500});
</script>
</body>
</html>
`