In the comments to my previous post Tim Del Chiaro gave the very interesting explanation how "Delphi for PHP" got its name:
"Delphi for PHP got its name because it's the only PHP IDE that offers a development style similar to Delphi for Windows with drag-and-drop visual development and a visual component library.
When building the Delphi for PHP IDE, the team took advantage of some of the great Delphi add-ins from the developer community including PHP4Delphi. We're glad we could recognize you and other community members in the about box of the product.
If anyone else is interested in Delphi for PHP, they can get more information at http://www.embarcadero.com/products/delphi-for-php"