[Help] php codes can't be rendered well.

[river001]

I am using linux+apache+php+mysql solution now(I've never used it before).

My problem is:

(1) If I use <?php .......?> style, it works.
But if I use <? ...... ?>, apache cannot interpret the codes, and only render all the codes directly into my browser.

(2) I've set the value of DocumentRoot in httpd.conf, but when I use the following codes to display the value of $DOCUMENTROOT, I can see nothing:

<?php print $DOCUMENTROOT; ?>

so the following codes don't work either:
<?php include ($DOCUMENTROOT."/files/header.inc"); ?>

I've tried a long time, anyone who can help me, I will appreciate it very much.

Thanks a million!

[yelvington]

Short tags are enabled by a configuration setting in PHP.INI. Read:
http://us3.php.net/basic-syntax

To reliably retrieve the document root on an Apache installation, use

_SERVER["DOCUMENT_ROOT"]

[river001]

Thank you so much!

But I cannot change the codes, because the codes are already done by others, I am doing deploying things.

So do you have some other way to make "$DOCUMENTROOT"work?

Originally posted by yelvington
To reliably retrieve the document root on an Apache installation, use
_SERVER["DOCUMENT_ROOT"] [/B]

[yelvington]

Well, you can't, because $DOCUMENTROOT won't be set. The variable name must have an underscore between DOCUMENT and ROOT, and you really should refer to the global supervariable name $_SERVER['DOCUMENT_ROOT'].

If the code you're deploying refers to $DOCUMENTROOT (no underscore) and never sets that variable, your coders wrote broken code.

If you merely mistyped the code and it really says $DOCUMENT_ROOT, you can change the value of the PHP directive register_globals. But read this first:

http://us3.php.net/register_globals

[river001]

Sorry, I mistyped it should be $DOCUMENT_ROOT.

Thank you, I'll turn on the register_globals.