update files for dropped todo and examples
- https://github.com/php/php-src/commit/
2783b1c823de394894ec5592426416267386b958
- https://github.com/php/php-src/commit/
d5cb3587658e0ad5914d26318d16981ad582f57c
- https://github.com/php/php-src/commit/
2bc23f8028cad5419741d1e9efd46e563886101a
- https://github.com/php/php-src/commit/
83e881bbb6c4899ff112a1eef9d9be8c95eaf26c
- https://github.com/php/php-src/commit/
a57de26c3dd868a8607d56b6d0b41fc83c944035
- https://github.com/php/php-src/commit/
60909f391daf5a2a61de91afe86e32b57dd4200d
- https://github.com/php/php-src/commit/
5971180aa692f536859f38db26f58d29a2682404
- https://github.com/php/php-src/commit/
b7b55d955eb69a844129fa735a8bfbdd6ba37495