How to change php.ini settings from command line

I'm using Putty and I've been able to successfully login to my server. I need to change max_upload_filesize and this is what I did:

php -c/user/local/lib/php.ini -d upload_max_filesize=8MB

I hit "enter" and nothing happened. By that I mean the cursor dropped down to the next line and when I went to upload a file, I got the same error (file size too big).

Is there something in my command line that I'm missing?
Bruce GustPHP DeveloperAsked:
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Open the file using an editor such as nano -- type:

sudo nano /user/local/lib/php.ini

Once the file is opened, enable the search feature -- press Ctrl+W
Then type: upload_max_filesize
followed by enter.  When you find the appropriate line, provide the value you want and press Ctrl+O to save, then Ctrl+X to exit nano.

If your problems persist, restart apache.  On CentOS this would be:
sudo service httpd restart

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