Unlike functions, classes, namespaces, and insensitive created defined constants, PHP variables are ALWAYS case sensitive. There is no $_Post, the correct variable is $_POST.
Pull a switch on $_POST['product']. Option's I don't believe can be named if I recall my RFC's, so those would be ignored. The value(s) chosen will be under the $_POST['product'], so it would work well with a switch (PHP allows switches on strings since they are considered primitive data):
PHP Code:
switch ($_POST['product'])
{
case 'tube':
echo "for your interest in Tube Men.<br>";
break;
case 'oldtube':
echo "for your interest in 70's Tube Men.<br>";
break;
case 'dinosaur':
echo "for your interest in Tube Dinosaur.<br>";
break;
case 'gorilla':
echo "for your interest in Tube Gorilla.<br>";
break;
case 'spider':
echo "for your interest in Tube Spiderman.<br>";
break;
default:
echo "for your interest in our products.<br>";
}
You could also use an array for even simpler lookups:
PHP Code:
$aOptions = array(
'spider' => 'for your interest in Tube Spiderman.',
// and so forth
);
if (isset($aOptions[$_POST['product']]))
{
print $aOptions[$_POST['product']] . PHP_EOL;
}
else
{
print"for your interest in our products.";
}