How to set custom PHP.ini
The Loaded Configuration File path - /usr/local/lib/php.ini (Found using phpinfo(); )

Now how can i edit this file or making a copy of this file anywhere I wish? In some forums I was asked to execute this command,

cp /usr/local/lib/php.ini /public_html/ so that the PHP.ini file will be copied to public_html folder. But I do not understand where to execute this command.

I do not have much idea in PHP so that i could resolve this issue on my own. Any detailed procedure will be helping me.
How to set custom PHP.ini
===

The Loaded Configuration File path - /usr/local/lib/php.ini (Found using phpinfo(); )

Now how can i edit this file or making a copy of this file anywhere I wish? In some forums I was asked to execute this command,

cp /usr/local/lib/php.ini /public_html/ so that the PHP.ini file will be copied to public_html folder. But I do not understand where to execute this command.

I do not have much idea in PHP so that i could resolve this issue on my own. Any detailed procedure will be helping me.