ReadMeFeed / Community knowledge
Real questions. Useful conversations. Find the people who know your stack.
Developer tools · #composer
Stop unpredictable production crashes by mastering the difference between composer.json and composer.lock. Learn how to use the SAT solver and SemVer to ensure environment parity.
Learn how to eliminate environment drift in PHP by separating dependency resolution from installation using Composer's SAT solver and lock files.
Stop fighting 'Class not found' errors. Learn when to use PSR-4 for dynamic development and when to leverage Classmaps for production performance in PHP.
Commit composer.lock for apps and run composer install in CI. Update locally to move constraints, install everywhere else to reproduce the exact dependency graph with Composer 2.
Learn how to use caret (^) and tilde (~) operators in Composer to manage PHP dependencies, balancing the need for security updates with application stability.
php