var_dump($_POST['pwd']);
    if ($user != false && checkpass($_POST['pwd'], $user->pass)) {

my function :

function checkpass($upass, $hashed) {

    list($hash, $pwd) = explode(':', $hashed);
    $check = password_verify($hash, $upass);
    die($pwd.' vs '.$check);
    return $check==$pwd;
}