Member Avatar for Ric_1

im new in php and i want to have a login that after 3invalid password attempts disables the login button. heres my login code
thanks for the help in advance :D

<?php
session_start();
include_once 'dbconnect.php';

if(isset($_SESSION['user'])!="")
{
 header("Location: home.php");
}
if(isset($_POST['btn-login']))
{
 $email = mysql_real_escape_string($_POST['email']);
 $upass = mysql_real_escape_string($_POST['pass']);
 $res=mysql_query("SELECT * FROM users WHERE email='$email'");
 $row=mysql_fetch_array($res);
 if($row['password']==md5($upass))
 {
  $_SESSION['user'] = $row['user_id'];
  header("Location: home.php");
 }
 else
 {
  ?>
        <script>alert('Invalid Login');</script>
        <?php
 }

}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Login</title>
<link rel="stylesheet" href="" type="text/css" />
</head>
<body>
<center>
<div id="login-form">
<form method="post">
<table align="center" width="30%" border="0">
<tr>
<td><input type="text" name="email" placeholder="Your Email" required /></td>
</tr>
<tr>
<td><input type="password" name="pass" placeholder="Your Password" required /></td>
</tr>
<tr>
<td><button type="submit" name="btn-login">Sign In</button></td>
</tr>
<tr>
<td><a href="register.php">Sign Up Here</a></td>
</tr>
</table>
</form>
</div>
</center>
</body>
</html>
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  • 3 Hours Discussion Span
  • Latest Post Latest Post by hericles
Member Avatar for hericles

You can store the current login attempts in a session variable and then check that variable on each attempt, incrementing by one for each failure.
When it hits 3, you can echo out the submit button with the 'disabled' attribute

<?php if($_SESSION['failedLogins'] == 3) {
 echo "<td><button type="submit" name="btn-login" disabled>Sign In</button></td>";
 } else {
  echo "<td><button type="submit" name="btn-login">Sign In</button></td>";
 }
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