Complete PHP noob needs help

It's $_POST, not $S_POST.

Also, always scrub your variables without fail, otherwise you're a ripe target for SQL injection. Whether there's a text box or any form of editable input does not matter. People can manually craft POST parameters, place form elements using local javascript, etc.


Another note about the difference between double quotes and single quotes: if you use single quotes around a string, PHP will NOT insert variable values. In other words, if you have

$variable = 'test';
$string = 'This is a $variable';
echo $string;

PHP outputs

This is a $variable

Put double quotes instead:

$string = "This is a $variable";

And you get the correct output ("This is a test").

Jam it back in, in the dark.