Set a Top Level or Super Duper Global Variable in PHP?

Question

Is it possible to make a Top Level Variable in PHP? Like Defining in .htaccess or httpd.conf? To be included in each .php file?

I would love to define BasePaths and some other variables there if possible. I am currently making some init.php and including 'em on top if each file.

You'd probably want to create a config file, and then have every other file include it at the top. — Stuart Wagner, May 31 '15 at 19:44
@StuartWagner, Yeah that's what I am doing now. I think that's very boring. — tika, May 31 '15 at 19:46
Answer is here https://stackoverflow.com/questions/17550223/set-an-environment-variable-in-htaccess-and-retrieve-it-in-php — David Jacquel, May 31 '15 at 19:47
@DavidJacquel that sets Environment, Right? Is it possible to set a variable as I asked? — tika, May 31 '15 at 19:50
@tika Yes, the question gives a good example of setting and retrieving an environmental variable. That should suit your needs. — Stuart Wagner, May 31 '15 at 19:51
Do you really mean variable, not constant? For something like variables you need to store its value in a session, a file, a database or on a service which is made for this purpose. For constants see David's answer — Daniel Alder, May 31 '15 at 19:51
@DanielAlder, Nope. A Constant is Enough. I can point them to a file and make some globals. That's fine. Thanks — tika, May 31 '15 at 19:54

David Jacquel · Accepted Answer · 2015-06-01T06:32:19.293

3

As your working with a multi entry point application, if you want to avoid including your configuration file, you can use the php's autoprepend functionality. This will automatically include a file for you without the need to do a <?php require('init.php'); ?> in each of you entry points.

And you can find a good advice here.

edited Jun 01 '15 at 06:32

answered May 31 '15 at 20:08

David Jacquel

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this is also a very nice option if we just want to include :) – tika May 31 '15 at 20:09
How to achieve something like: `php_value auto_prepend_file {DOCUMENT_ROOT}."/init.php"` The `.htaccess` file and `init.php` are in the same folder. – tika May 31 '15 at 20:33
1

Give the full path `php_value auto_prepend_file "/dir/path/utilities.php"` – David Jacquel May 31 '15 at 20:48

tika · Answer 2 · 2015-05-31T20:14:38.087

Based on the comments above, reference and this question, I am posting this answer future references for people in community:

Setting on .htaccess:

SetEnv VAR_NAME varValue

Also, worth mentioning:

SetEnv 'VAR NAME' 'var value' #Accepts Space with Quotes

Getting them on PHP files:

getenv('VAR_NAME')

More reference on : http://php.net/manual/en/function.getenv.php

If you are looking just to prepend a file on top of all the files and define all variables there, see David Jacquel's answer. That's cool. ;)

Set a Top Level or Super Duper Global Variable in PHP?

2 Answers2