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Developer tools · #composer
Guide to diagnosing Composer's 'Could not find package' error, covering spelling, repository, stability, and network causes with step‑by‑step checks and fixes.
Learn how Composer scripts automate post‑install/update tasks like migrations and cache clears, see a Laravel example, and understand the safety trade‑offs.
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.
When your team’s PHP versions drift, dependency resolution can break. Composer’s `config.platform` lets you emulate a specific PHP runtime during installs, ensuring the same lockfile everywhere. Learn how to set it up, what it does, and its trade‑offs.
Simulating Environment Constraints Composer allows the definition of a platform configuration within composer.json to simulate specific PHP versions and extensions. This ensures that the dependency solver selects package versions compatible with a target production environment, regardless of the local development setup. Resolution Uncertainty When the platfo
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