PHP doesn't get parsed when I try to run the PHP page. I am using NetBeans and running Apache Tomcat as the server. I have defined the interpreter for PHP which is shown in the following snapshot:

If I try to run the PHP page from within the IDE (by using the default shift+F6), it runs, but with a URL file:///C:/Users/user/AppData/Local/Temp/php_1.php11992.html for a file named php_1.php. But when I try to test the URL localhost:8081/app/php_1.php, the PHP in the page isn't parsed, and I see only the HTML getting parsed.
What could be the reason for this? What do I do to parse PHP directly ?
Note: I have installed XAMPP, and the path I give in the above snapshot is of the PHP interpreter that comes packed with the XAMPP package.