在每个文件之前运行代码

I built a website using PHP 5.3 (with Apache 2.4).

I have global file that needs to run before every page (to set timezone and more global settings).
So in each file I must to remember to include it in the top of the page. It is not convenient.

Is there any way to set a boot file that runs automatically before every file?

For example you can use this php config directive:

http://www.php.net/manual/en/ini.core.php#ini.auto-prepend-file

auto_prepend_file string

Specifies the name of a file that is automatically parsed before the main file. The file is included as if it was called with the require function, so include_path is used.