Performance tools
Doctrine stats
Get Doctrine stats : managed entities, lazy loaded entities, hydration time etc.
steevanb/doctrine-stats
Doctrine entity merger
Add hint MERGE_ENTITY to merge fields retrieved by many queries with PARTIAL.
steevanb/doctrine-entity-merger
Composer overload class
Allow to overload autoloaded classes, to include your files instead of supposed ones.
steevanb/composer-overload-class
PHP backtrace
Show nice equivalent to debug_backtrace(), with caller, code preview etc.
steevanb/php-backtrace