Performance tools
Doctrine stats
Get Doctrine stats : managed entities, lazy loaded entities, hydration time etc.
steevanb/doctrine-stats
Doctrine read only hydrator
Add SimpleObject and ReadOnly hydrators do Doctrine (3,5x faster).
steevanb/doctrine-read-only-hydrator
Symfony container introspection
View Symfony Container instantiated services, public / private services etc.
steevanb/symfony-container-introspection
PHP backtrace
Show nice equivalent to debug_backtrace(), with caller, code preview etc.
steevanb/php-backtrace