Performance tools
                        Doctrine read only hydrator
                        
                    
                Add SimpleObject and ReadOnly hydrators do Doctrine (3,5x faster).
steevanb/doctrine-read-only-hydrator
                        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
                        Blackfire
                        
                    
                Profile & optimize PHP apps.
blackfire.io