Debugging & Errors
Composer Caret vs Tilde Version: What Each Lets In
Composer caret vs tilde constraints affect allowed updates, but composer.lock protects installed versions. Compare ranges, spot breaking updates, and exclude bad releases.
Composer caret vs tilde constraints affect allowed updates, but composer.lock protects installed versions. Compare ranges, spot breaking updates, and exclude bad releases.
composer update broke your site? Roll back safely: restore the old composer.lock, run composer install, then clear what the new code already changed.
Composer dependency conflict? Resolve it by reading each Problem line, then run why-not and -W safely. Decoder table and commands for Composer 2.7+.
Upgrade PHP safely in production by running versions side by side, testing changes, switching traffic gradually, and keeping a fast rollback option ready.