composer

Question 1

What is the difference between require and require-dev

Answer 1

Require specifies the packages that are required for this application to run. Require-dev specifies packages that are required for development. For instance - ‘phpunit’ is not required for an app to run, so it should not be included in the “require” section.

Question 2

When you run composer install, which file does it read first?

Answer 2

composer.lock - if that doesn’t exist, then it will read composer.json