Answer
Composer autoloads classes based on PSR-4 or classmap. Classmap optimization precomputes file paths, reducing filesystem lookups and improving performance.
Quick Answer
composer dump-autoload --classmap-authoritative generates a complete classmap of all classes. PHP looks up classes directly in this map without scanning directories. Faster than PSR-4 file lookup. Use in production deploys. --optimize flag generates classmap with PSR-4 fallback. Avoid in development since new classes won't be found until you re-run dump-autoload.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
Want to bookmark, take notes, or join discussions?
Sign in to access all features and personalize your learning experience.
Source: SugharaIQ