Help with plugin
 

I create 2 fields in a table ABC, the first field is the X and Y is the second, both store data in a form checkbox, 0 if not checked, and 1 case marked.

Now my question is, I want to create a plugin, which store data from the field X and Y of the field on 2 variables for later I make a comparison in postbit and show a message if X = 1, and another case X = 0, the same applies to Y, show some message if Y = 1 and another message if Y = 0;

For this reason I created a plugin with the following code:

Hook Location: Postbit_display_complete

Plugin PHP Code:
Then put the template postbit the following condition:
But nothing worked, someone could help me?

You aren't writing in PHP - I suggest you read some material on PHP. :)

It could indicate a tutorial, where I can help me, to correct this plugin?

Thank

You need to learn the PHP basics, use google and search for "PHP Basics" or "PHP Introduction".

Else try the php.net site. http://www.php.net/manual/en/getting-started.php (You can also view it in different languages)

Also, you might want to look up how databases work, or explain your situation more clearly, as I understand it now, all you have is a single row in your table.