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
                        PHP backtrace
                         
                    
                Show nice equivalent to debug_backtrace(), with caller, code preview etc.
steevanb/php-backtrace
                        Blackfire
                         
                    
                Profile & optimize PHP apps.
blackfire.io