DWM9: Authentification

_libraries.php

<?php

/*
  Function that handle identification form,
  Check if form is sent, then check if passed credentials are correct.
  Returns two values:
    1    form_sent, true if form was sent, else false
    2    connected, true if credentials are good, else false
*/
function handle_authentification_form($users) {
  $form_sent = '...' // to edit
  $connected = '...' // to edit

  // code here

  return array($form_sent, $connected);
}


/*
  function that authentificate user.
    $username    username sent by user from form
    $password    password sent by user from form
    $users_db    users database to check
*/
function authentification($username, $password, $users_db) {
  $connected = false;
  // Check if username exists in db first, then check if passwords match
  if(isset($users_db[$username]) && $users_db[$username] == $password) {
    $connected = true;
  }
  return $connected;
}

?>

authentification.php

<?php
include_once('_users.php');
include_once('_libraries.php');

$auth_values = handle_authentification_form($users);

?>

<pre style="padding:10px; background: #eee"><?php var_dump($_POST); ?></pre>

<?php if(!$connected && $form_sent): ?>
<p><b style="color:red">Wrong password or username</b></p>
<?php endif; ?>

<?php if($connected): ?>
<div><b>You are connected</b></div>
<?php endif; ?>

<form method="POST">
  <input type="text" name="username" required/>
  <input type="password" name="pass" required/>
  <input type="submit" value="Validate"/>
</form>