PHP：每页上的PHP自动加载变量

Question

I have a constant

like define('SITE_URL','http://somewebsite.com');

I am using it on some pages

Some time also changing the value of that variable so that it is a pathetic task to go on each page and change the variable value .

Please suggest me some alternative like some automatic class loader or any other method .

Since it is my first PHP web so I am unable to decide what to do here ?

Answer 1

First of all a define is not a variable.

To use it in multiple pages, put all your defines in a separate PHP file, and include it in other php files when you want to use it.

example:

in defines.php:

define('SITE_URL','http://somewebsite.com');

in page1.php:

include 'defines.php';
// do stuff and use the define:
echo SITE_URL;  // <-- notice that there are no quotes

etc.