php - My login form returns the same form after authentication,my LDAP connection is not working

<?php get_header(); ?>

<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>

<div >
  <div >
    <div >
      <h1 >Sign in to continue to Bootsnipp</h1>
      <div >
        <img src="https://lh5.googleusercontent.com/-b0-k99FZlyE/AAAAAAAAAAI/AAAAAAAAAAA/eu7opA4byxI/photo.jpg?sz=120"
          alt="">
        <form method="post">
        <input type="text" placeholder="Email" required autofocus>
        <input type="password" placeholder="Password" required>
        <button type="submit">
          Sign in</button>
        <label >
          <input type="checkbox" value="remember-me">
          Remember me
        </label>
        <a href="#" >Need help? </a><span ></span>
        </form>
      </div>
      <a href="#" >Create an account </a>
    </div>
  </div>
</div>


<?php
// active directory server
	$ldap = ldap_connect("ldap://44.44.444");


//active directory DN (base location of ldap search)
$ldap = 'dc=itit,dc=local';


// configure ldap params
	ldap_set_option($ldap,LDAP_OPT_PROTOCOL_VERSION,3);
	ldap_set_option($ldap,LDAP_OPT_REFERRALS,0);

// user prefix
		$ldap_usr_dom = "@itit.local";


  // verify user and password
	if($bind = @ldap_bind($ldap, $user.$ldap_usr_dom, $password)) {

echo success;
}else{
return false;
}

?>

<?php get_footer(); ?>Copy code