jacksp302

I have installed PHP5, Apache, XAMPP, everything is running fine but when i go to the browser, i made php testing file and moved it in "htdocs". I tested it and instead of showing "hello world" it is showing the code like this: <?php print ("Hello World"); ?> its now showing "Hello World". I tried to google my problem but couldn't really find anything. Don't understand what i m doing wrong.