I recently discovered a repeating message in the error log of a customer’s WordPress installation. “PHP Deprecated: Automatically populating $HTTP_RAW_POST_DATA . . .” Here’s what that means and what to do if this is happening to you.
SG Optimizer will go through all the code for your theme and plugins looking for things that won’t work with PHP 7.0. Once the plugin is done with its analysis, it gives you a list of any problems that it finds.