The Zend license says I may not charge money for stuff I sell along with Zend. Does that mean I cannot sell PHP scripts or web sites that I build?
. No. Not at all. This clause only concerns software built around the Zend scripting engine library, not scripts that PHP executes, using that library. You are free to distribute PHP source code you write freely or commercially, without any concern about the PHP or Zend licenses. You may also package PHP as a whole with your commercial applications as much as you want. You just can’t build commercial applications that use the Zend scripting engine library directly.