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Correctly include php header in all pages

Answer 1

A:

Try

<?php require_once('./header.php'); ?>

And adjust the path as needed, i.e. ../header.

Josh K 2010-04-09 23:25:27

Is there a way to set it relative to the root, not relative? I wouldn't adjust every time I create or move the file.

serhio 2010-04-09 23:27:51

ah. noticed that require not include... is a difference?

serhio 2010-04-09 23:29:22

Won't be downvoting but absolute filepaths in PHP are not URL-based but filesystem-based. So your last sentence is false.

Daniel 2010-04-09 23:29:29

@serhio, the difference between require and include is simply that if require fails php generates a (fatal) E_ERROR error instead of an E_WARNING.

Daniel 2010-04-09 23:31:00

@Daniel: I stand corrected.

Josh K 2010-04-09 23:34:08

`<?php require_once '/header.php'; ?>` does not work from by e.g. "login/index.php", but `<?php require_once '../header.php'; ?>` works

serhio 2010-04-09 23:41:15

../header.php should work if your header.php file is within one folder of your root. Ex: If your root folder has index.php, and you want to access your header.php which let's say is in a folder called header, you need to write "../header.php.

ggfan 2010-04-09 23:54:46

maybe the "problem" is that "DOCUMENT_ROOT" gives me: `/home/mySite/public_html`

serhio 2010-04-10 00:01:24

@ggfan: yes, I know this. As I said, "../header" works, but not '/header'

serhio 2010-04-10 00:02:53

Answer 2

+1 A:

You can do something like this:

include($_SERVER["DOCUMENT_ROOT"] . "/header.php");

Joel Alejandro 2010-04-09 23:30:06

]."/header.php");

serhio 2010-04-09 23:58:43

I hate to be a pedant but you really should use single quotes. Not only because they look nicer (subjective, I guess), but are more efficient as they are treated as literals thus will be used unevaluated.

Tim Green 2010-04-10 00:06:34

Thanks for the heads-up! I'll keep that in mind. Oh, and you shouldn't introduce yourself with "I hate to be a pedant but--". I mean-- your comment is really instructive, and I've learnt something new today! Thanks again :)

Joel Alejandro 2010-04-10 01:04:06

Hey @Tim I hate to be a pedant but there is no difference. Stop spreading stupid ancient rumors. Go learn profiling. There is nothing instructive in this post, but only wild superstitions. there is nothing to evaluate in the "/header.php" string

Col. Shrapnel 2010-04-10 04:28:31

That's the point. We know there is nothing to evaluate in the string, but how does PHP? It doesn't, it checks the string to see if there are any variables. Give it a literal string, and it won't check. That's my point.

Tim Green 2010-04-10 13:26:09

Alright, let's benchmark both quotes. How much will be the difference? 0.0000000000001 secs? I don't think it's worth to argue about the (non) efficiency of using double or single quotes...

Joel Alejandro 2010-04-10 14:57:26

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Correctly include php header in all pages

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