// 这是 PHP 单行注释/*这是 PHP 多行注释*/

<?php$txt1="Learn PHP";$txt2="w3cschool.cc";$cars=array("Volvo","BMW","Toyota");echo $txt1;echo "<br>";echo "Study PHP at $txt2";echo "My car is a {$cars[0]}";echo "<br>";echo "{$txt1}";?>