Below is a before and after shot of the effects of the .htaccess edit. Learn how to execute PHP code in a file with a .html extension to add new features to your website to make it pop.Learn How to Edit HTML Using TextEdit on Your Mac. The Starting Steps to Learning PHP. EDIT. Does someone have a link/example to how to generate Data URLs properly with PHP?I am trying to make a single executable file that will run on the system of someone who does not have pyt.