<!DOCTYPE html>
<html>
<body>
<?php
$txt1="Learn PHP";
$txt2="ziqiangxuetang.com";
$cars=array("Volvo","BMW","Toyota");
echo $txt1;
echo "<br>";
echo "Study PHP at $txt2";
echo "<br>";
echo "My car is a {$cars[0]}";
?>
</body>
</html>