问题 求助：白老大，指导一下。

<?php mosLoadModules ('guestsonly' , -1); ?>

<?php if (!$my->id) {mosLoadModules ('guestsonly' , -1);} ?>

<?php mosLoadModules ( 'user3', -1); if ( !$my->id ) { mosLoadModules ('user9', -1); }?>

// user group things JOOMLA 1.5
  // if user is not logged in, show mod 44. If they are logged in show mod 45:
  if ($user->usertype == "" || $user->usertype == "Public Frontend") return 44; else return 45;
  
  // if user is not logged in, show mod 44. If they are logged in show nothing at all:
  if ($user->usertype == "" || $user->usertype == "Public Frontend") return 44; else return;
 
  // if user IS logged in, show module 45, else show nothing at all:
  if ($user->usertype != "" && $user->usertype != "Public Frontend") return 44; else return;
 
  if ($user->usertype == "User") return 46; // a plain registered user, no additional privileges
  if ($user->usertype == "Publisher") return 47; // show a notice for users with "Publisher" privileges

// user group things JOOMLA 1.0.x
  // if user is not logged in, show mod 44. If they are logged in show mod 45:
  if ($my->usertype == "" || $my->usertype == "Public Frontend") return 44; else return 45;
  
  // if user is not logged in, show mod 44. If they are logged in show nothing at all:
  if ($my->usertype == "" || $my->usertype == "Public Frontend") return 44; else return;
 
  // if user IS logged in, show module 45, else show nothing at all:
  if ($my->usertype != "" && $my->usertype != "Public Frontend") return 44; else return;
 
  if ($my->usertype == "User") return 46; // a plain registered user, no additional privileges
  if ($my->usertype == "Publisher") return 47; // show a notice for users with "Publisher" privileges