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
PHP backtrace
Show nice equivalent to debug_backtrace(), with caller, code preview etc.
steevanb/php-backtrace