Force composer to use new version of PHP

Is your question how to update the php requirement in composer? if so:

composer config platform.php <your version here>

Or is your question to switch your mac PHP version based on your composer file requirements? If so: You can't directly, use an easy to use manager like brew to quickly switch PHP versions.

ex:

brew unlink php@8
brew link [email protected]

@iamlux20 You don’t “force” Composer. Composer will use whatever PHP version you have installed on your command line. If you want to use PHP 8.2, then you need to install PHP 8.2.

This is why people wrap up their projects using something like Docker, so you’re not fiddling about with different versions of software for different projects. Your development environment should match your production environment as closely as possible.