bfistein
commented
5 years ago @broudy3 Phalanger's development is mostly discontinued in favor of PeachPie, the more modern compiler and runtime that also targets .NET Core. Please feel free to give that a try.
array_key_exists does not behaves as it should, from php documentation:
For backward compatibility reasons, array_key_exists() will also return TRUE if key is a property defined within an object given as array.
Phalanger reports error if input parameter is not array.