How Do I Create a "Comments Form" That Posts Results to Same Page?

Hello all,

I hope I am posting under the correct Forum. I am new to PHP code, but I am affluent in regular HTML code. I run an obscure movie review website and would like to be able to have a comment section after each movie review where someone can leave their comment and it gets posted under the review on the same page. I’ve been reading up on PHP for around 4 hours today and can’t seem to find any useful information. Luckily I stumbled upon this forum. So could anyone assist me in doing this? I will give you complete credit for allowing me to have this type of format on the website.

Thank you in advance.

~ Chris Mayo

An example of the type of comment form that other review websites have used can be found at the following links:

http://bloody-disgusting.com/review/822
or this:
http://www.twitchfilm.net/archives/002261.html

Or even this comment form which is on a PHP tutorial site, but I still don't have a clue how to go about creating it:
http://www.tipsntutorials.com/tutorials/PHP/50

Thanks,

~ Chris

Anyone??????

~ Chris