Performance tools
Doctrine stats
Get Doctrine stats : managed entities, lazy loaded entities, hydration time etc.
steevanb/doctrine-stats
Composer overload class
Allow to overload autoloaded classes, to include your files instead of supposed ones.
steevanb/composer-overload-class
Composer autoload infos
View Composer autoload informations: included files, autoloaded classes etc.
huttopia/composer-autoload-infos
Blackfire
Profile & optimize PHP apps.
blackfire.io