LPMJ Example 4-1 (Click on the icon to view the source for copy and pasting)
<?php
echo "a: [" . (20 > 9) . "]<br />";
echo "b: [" . (5 == 6) . "]<br />";
echo "c: [" . (1 == 0) . "]<br />";
echo "d: [" . (1 == 1) . "]<br />";
?>