PHP equivalent to PERL $ENV{DOCUMENT_ROOT} command???

lunchboxpad

Hi. I would like to know if PHP has an equal to PERL's $ENV{DOCUMENT_ROOT} command. In my php file, I call a file to write to and I use the full system path to the file.

I would like to know if there is a way in PHP where I can just write a command like $ENV{DOCUMENT_ROOT}, then just add the directory and file, like below:

PHP_COMMAND/templates/default.txt

Where PHP_COMMAND would be a command that works to list the system path, just like $ENV{DOCUMENT_ROOT} does for PERL.

Any help will be appreciated. Not a biggie, but if changing hosts, it would be nice to have to edit as little as possible.

Bryan

Mordecai

$_SERVER["DOCUMENT_ROOT"]

lunchboxpad

Thank you Mordecai!! I tried it like you wrote, but that didn't work. I then removed the " and it worked-- $_SERVER[DOCUMENT_ROOT]

It worked perfect without the ".

The line in the script calls another file to write to:

$id="$_SERVER[DOCUMENT_ROOT]/download_id.txt";

Thanks again for your help!

laserlight

The reason why it didnt work with the double quote is that you are calling the variable in a string within double quotes.

You should use:
$id = $_SERVER['DOCUMENT_ROOT'] . '/download_id.txt';

lunchboxpad

Thanks laser-- I tried both ways, and the file is written correctly each way. Is there any harm in using method 2 rather than 1? Since they both work, it really doesn't matter to me, a PHP newbie.

(1) $id = $_SERVER['DOCUMENT_ROOT'] . '/download_id.txt';

(2) $id="$_SERVER[DOCUMENT_ROOT]/download_id.txt";

Bryan

Weedpacket

Originally posted by lunchboxpad
Thanks laser-- I tried both ways, and the file is written correctly each way. Is there any harm in using method 2 rather than 1? Since they both work, it really doesn't matter to me, a PHP newbie.

Method (2) is a bit slower to run (though only on the order of a few milliseconds).