In PHP you can use Rector[1] It's used a lot to migrate old codebases. The tool is using itself to downgrade[2] it so that it can run on older PHP versions to

In PHP you can use Rector[1] It's used a lot to migrate old codebases. The tool is using itself to downgrade[2] it so that it can run on older PHP versions to help upgrades. [1] https://getrector.com https://getrector.com [2] https://github.com/rectorphp/rector-downgrade-php https://github.com/rectorphp/rector-downgrade-php