Well, smoking cigarettes seems to work rather well for millions of successful people out in the wild - making your argument invalid.
It IS possible to make "business good" software in brainfuck, that's just not a reason to call it "not broken".
See, this is about science, logic, and whether or not a feature is properly supported by a language, not about whether or not somebody managed to build and sell a solution while using that feature.
PHP is naturally (due to it's C libs) non-OO and will thus only implement OO "that" far.
Lastly, OO is not a silver bullet and is best used only in front-end, and languages that were designed with it in mind.