you can use this information to find check if you have php running on your website. this is helpful if you have a php script and is showing you the code itself and not parsing the code in you php file from your website 
ok, i rewrote this page because i wanted a simple way to show you how you can confirm whether or not you have php running on your website.
the simple solution is create a php file and copy/paste this code:
save the php file,
if you still see <?=phpinfo()?> as the output of the file, then it means you are not running php in your website