Your two concerns are pretty "low level", thus satisfied by just about any option you pick. Most frameworks have "HTML Helpers" that can generate forms for you.
For example, in CodeIgniter, this:
form_submit('register', 'Submit Registration!');
will generate this:
<form method="post" action="http:/example.com/registration/complete" />
<input type="text" name="username" id="username" />
<input type="text" name="password" id="password" />
<input type="text" name="password_confirmation" id="password_confirmation" />
<input type="submit" name="register" value="Submit Registration!" />
and it will handle the form parameters and all that for you (with a little direction on your part).
Your other requirement -- reading in forms to input into the database -- is a basic FORM --> DATABASE insert that you'll also pick up quickly on your quest to learn about making websites.
To give you more actionable advice, I started out learning HTML/CSS and PHP. Gained a bunch of familiarity by playing with my own Wordpress and vBulletin installations. Then I seriously developed a few websites with PHP. And now I work with Ruby (framework: Rails) and Python (framework: Django).
I highly recommend that you start with:
- HTML/CSS (for displaying the website).
- PHP to actually run the logic of your website, interact with the database (like inserting submissions, selecting submissions to render into HTML), and generally run your website.
- MySQL as your database.
- CodeIgniter as a PHP framework. It has great documentation (pull down the Table of Contents tab on top).
This is pretty much called a "LAMP stack" (Linux/Apache/MySQL/PHP, for our purposes) and just about every server out there runs this setup. PHP is also the most prevalent scripting language out there, so you can find the most resources. And most of all, this all is easy to deploy and get running.
I think your real aim should be to learn how to make websites. Start by learning the fundamental basics of HTML, but then immediately jump into "PHP & MySQL", which are often taught coupled together. Once you have some basic footing and did some tutorial project in whatever book you chose to learn PHP/MySQL, I recommend jumping straight into your RateMyX project that you've envisioned. I'd even forget about CodeIgniter or any other framework until you can confidently create a simple website that can create/read/update/delete (CRUD) records in a database. A general understanding of PHP/HTML/database is required until you throw in another layer of something you simultaneously need to learn (a framework).
But once you get to that point, you'll realize what a framework really is and why it's helpful.
The project you describe is easier than you think. You just need to pick up a PHP+MySQL book and have at it.
/Edit/: I see that you're already learning PHP/MySQL and want some tools to help you out. Then go ahead and jump into CodeIgniter, start checking out the various Helpers and Classes in the User Guide I linked. You'll also have to learn the MVC (Model/View/Controller) setup, but once you learn it, you'll never want to go back. Even when I first started, I found that the actual website logic was easy. The harder parts were getting login/registration/authorization set up. Fortunately, CodeIgniter already has soon good solutions. Check out TankAuth or IonAuth for it. Handling data (Get and Post data, for example) that persists between pages as also very annoying until you get a framework.