Well, it’s extremely backwards compatible. To the point my 15 year old websites written in it still work with some minor (+/- 10 lines) modifications. Presumab

Well, it’s extremely backwards compatible. To the point my 15 year old websites written in it still work with some minor (+/- 10 lines) modifications. Presumably you can still write bad code in PHP. But the mysql library that was sql injection heaven is now truly dead.