In a post on the Zend Developer Zone they've introduced a new offering from Zend as a part of their Zend Studio IDE - PHP 7 Express. This tool makes it easy to migrate your code to a working state with the upcoming PHP 7 release.
The PHP 7 revolution is well upon us and at the end of the year we should be seeing an official release. To help you prepare for the expected changes, the upcoming version of Zend Studio – Zend Studio 13, includes a new migration tool called PHP 7 Express. PHP 7 Express scans your PHP code for potential compatibility issues with PHP 7 and supplies you with all the information you need to get your projects ready for migration to PHP 7.
They give an example of refactoring as it relates to the uniform variable syntax changes and removing deprecated function calls. They walk you through the use of the tool (inside the IDE) and show an example of the results, how you can jump to the code for each of the issues listed and the recommendations it provides to correct it.