NYCPHP Meetup

[Dan Cech]

Michael Sims wrote:
> On Friday 29 December 2006 2:00 pm, Dan Cech wrote:
> 
>> Yes, If you want the full filename (including filesystem path) __FILE__
>> is indispensable, and basename(__FILE__) is the best way to get the name
>> of the currently running script.
>>
>> The problem comes when you're attempting to construct the correct
>> absolute URL for a given file.  When running php as a cgi there doesn't
>> seem to be a method of achieving this securely, as in this setup
>> $_SERVER['SCRIPT_NAME'] will contain the php interpreter, like
>> '/php-cgi'.
>>
>> Bottom line is that if your script will be run under php-cgi you must
>> not use SCRIPT_NAME, so we're back to square one.
> 
> There's a solution for that (two solutions in fact, either a php.ini setting 
> or a different variable):
> 
> http://www.symfony-project.com/trac/ticket/842
> 
> So I suppose the canonical solution would be something like:
> 
> $thispage = (isset($_SERVER['ORIG_SCRIPT_NAME'])) ? 
> $_SERVER['ORIG_SCRIPT_NAME'] : $_SERVER['SCRIPT_NAME'];
> 
> How's that?  That should work anywhere, right?
> 
> (Disclaimer: I never use PHP as a cgi script and can't test this.)

Hmm, I wasn't aware of the .ini fix, that's good to know.  After
changing it to cgi.fix_pathinfo=1 (default is 0), SCRIPT_NAME functions
as expected.  I'm not that thrilled with requiring a non-standard
php.ini setting but it will work for the moment.

To add insult to injury, ORIG_SCRIPT_NAME is only being populated when
this is set to 1, at which point you don't need it for what we're trying
to do!

Dan