custom message by variable taxonomy

i have a question.

when my custom taxonomy property type equal is to apartment, i like to have some text in my taxonomy template.

http://www.bulgariaprimeproperties.com/?property_type=apartment

i tried this:

<?php if ($_get[‘property_buyorrent’] == “properties-in-bulgaria-for-sale”) {

$content = “test”;

echo $content;

}
?>

what did i do wrong?