Proposal: automatically add strict types #7542
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This PR is an experiment that aims to check if it would be practical to automatically add strict types to all PHP files that are missing them. Initially, it will add them to all PHP files, but con subsequen runs, it'll only affect new files.
The strict types declaration has become a requirement on WordPress.com in order to commit new PHP files to the codebase, and solving this upstream (eg. on Create Block Theme) might not be the best, since prescribing strict types to its broad userbase could prove problematic.