Re: php tutorial

> I just upgraded to PHP 4.1.2, and now a lot of my pages don’t work. I went > to the intro tutorial, and the code there doesn’t work either. Is there > something I have to turn on now? I need help getting this to work: > > <?php echo $HTTP_USER_AGENT; ?> > > How do the vars get requested now? I need to use the environment var. That tutorial implies, that you have the old type of PHP installation. In newer versions of PHP, we recommend you using register_globals = Off in php.ini, to eg. write more secure programs. This setting affects the global variable you mentioned above. From PHP 4.0.3, track_vars is allways turned on, so you can access this var with $HTTP_ENV_VARS['HTTP_USER_AGENT']. From PHP 4.1.0, the $_ENV['HTTP_USER_AGENT'] alternative is also here for you to choose. At last, you can use getenv('HTTP_USER_AGENT') to get the environmental variables. Note, that this address is not for submitting such support questions. Please ask further questions on our mailing lists, or other support channels. A list can be found at http://php.net/support Goba [one webmaster@php.net]