Getting a copy of PHPStorm will make things much easier, you can run Reformat code on PHP files and you can also do mass updates from code inspections. Also wo

Getting a copy of PHPStorm will make things much easier, you can run Reformat code on PHP files and you can also do mass updates from code inspections. Also worth checking out is a package called Rector (https://github.com/rectorphp/rector https://github.com/rectorphp/rector) which will automate a lot of this by scanning the codebase and providing diffs so you can upgrade safely.