The php.ini file does not have to contain all the directives present in the servers php.ini file. It is only necessary to add the directives you wish to change.
Paste the following PHP code into a PHP file (for example test.php) and view the file in your browser to see the existing PHP setup:
Example of a php.ini file that changes the values of 3 directives:
The possibility to change php.ini directives as you want, makes it easier to misuse the servers resources. Your account will be immediately suspended if you have changed directives in php.ini that leads to the consumption of large amounts of the servers resources. The account will not be unsuspended until we are sure that you have made the necessary changes to prevent further misuse.