DarkMoon,
Пример (+/-)
if ($user_id) {
echo '<div class="form">' . $lng['hi'] . ', ' . ($user_id ? '<b>' . $login . '</b>!'
.'<br/><a href="/users/profile.php?act=office">' . functions::image('contacts.png') . $lng['personal'] . '</a>'
.'<br/><a href="/exit.php">' . functions::image('del.png') . $lng['exit'] . '</a>'
: $lng['guest'] . '<form action="login.php" method="post"><p>' . $lng['login_name'] . ':<br/>' .
'<input type="text" name="n" value="' . htmlentities($user_login, ENT_QUOTES, 'UTF-8') . '" maxlength="20"/>' .
'<br/>' . $lng['password'] . ':<br/>' .
'<input type="password" name="p" maxlength="20"/></p>' .
'<p><input type="checkbox" name="mem" value="1" checked="checked"/>' . $lng['remember'] . '</p>' .
'<p><input type="submit" value="' . $lng['login'] . '"/></p>' .
'</form>' . '<div class="menu"><p>' . functions::image('user.png') . '<a href="registration.php">' . $lng['registration'] . '</a></p></div>'
. '<div class="bmenu"><p>' . functions::image('lock.png') . '<a href="users/skl.php?continue">' . $lng['forgotten_password'] . '?</a></p></div>' );
echo '</div>';
} else {
header('Location: http://'. $_SERVER['HTTP_HOST'] .'/login.php');
exit;
}