The best description of this disambiguation was given by Jonathan Benedicto:
"Delphi For PHP can run Delphi code, because Delphi For PHP can run PHP code and because PHP code can run Delphi code. This is because PHP can run Delphi code, because a PHP extension can be written in Delphi, using PHP For Delphi's PHP extensions development framework. So, using Delphi For PHP, which, written in Delphi, runs PHP code, using PHP For Delphi, that PHP code, running in Delphi For PHP, can call a PHP extension being PHP, and the PHP extension can be written in Delphi, and executed in Delphi For PHP, using PHP For Delphi. So the end result is that Delphi For PHP, using PHP For Delphi, may execute PHP code, that may call a PHP extension, that may be written in Delphi, because PHP For Delphi can create a PHP extension from Delphi code, so Delphi For PHP can execute Delphi code, by calling PHP that calls a PHP extension written in Delphi. Oh, and did I mention that Delphi For PHP is written using Delphi For Win32?
Am I close to the truth? ;-) "