Want to extend the upload file limit on server. but its php.ini is by default set for 2mb files, and don't know how to change it as it is not available for me and may change the configuration for all if so I do.

Any help will be appreciated, I have tried the following methods:

1. using php ini_set() function.

2. creating a php.ini file in my web root folder and setting up the values as they should be in default php.ini.