projetphp/function.php

<?php

//SELECT * FROM `projetphp` WHERE `login` = 'aaazzze'
function userExist($login){
  try {
      $config = include('config.php');
      $bdd = new PDO('mysql:host='.$config['host'].';dbname='.$config['dbName'].';charset=utf8', $config['username'], $config['pw']);
  } catch (Exception $e) {
      die('Erreur : '.$e->getMessage());
  }
  $req = $bdd->prepare('SELECT * FROM `projetphp` WHERE `login` = :login');
  $req->execute(array('login' => htmlspecialchars($login)));
  if($req->rowCount() != 0)
  {
    $req->closeCursor();
    return true;
  }
  else {
    $req->closeCursor();
    return false;
  }
}
?>