Question

I have created a login form for my website but currently, it is not working and I am being directed to invalid.php which shows my authentication has failed.

 <?php
     session_start();
     include("scripts/dbconnect.php");
     $numrows=0;
     $password=$_POST['password'];
     $email=$_POST['email'];
     $query="select fname,lname,email from mayan_users where (password='$password' && email='$email')";
     $link = mysql_query($query);
     if (!$link) {
      die('login error');
     }
     $numrows=mysql_num_rows($link);
     if ($numrows>0){  // authentication is successfull
      $row = mysql_fetch_array($link, MYSQL_ASSOC);
      $_SESSION['user']['fname']=$row['fname'];
      $_SESSION['user']['lname']=$row['lname'];
      $_SESSION['user']['email']=$row['email'];
      header("location:../index2.php");
     } else {
      header("location:../invalid.php");  // authentication was unsuccessfull
     }
    ?>

and here is my login form

<div id="Loginform" style="background-color:fuchsia; width:100%">

<span id="logspan">
     <input type="email" name="email" id="email" placeholder="Email" required />
     <input type="password" name="password" id="password" placeholder="Password" required/>
     <input type="button" name="submit" style="cursor:pointer" id="submit" value="Log In" onclick="logMeIn()" />
    </span>

</div>

Answer 1

Your login may need to be to be wrapped in form tags if you aren’t submitting it via some other method.

<form method="post" action="">
     <span id="logspan">
         <input type="email" name="email" id="email" placeholder="Email" required />
         <input type="password" name="password" id="password" placeholder="Password" required/>
         <input type="button" name="submit" style="cursor:pointer" id="submit" value="Log In" onclick="logMeIn()" />
     </span>
</form>

If your PHP is in another document then set the action to the form processor

action="form-processor.php"

(Thanks njk!)