Not good work. We're not talking about good work. We're talking about fast work that runs on the web, works at scale, and allows the organization to pivot easily. You certainly won't catch me suggesting PHP is some sort of awesome language.. it's not. But it's language that lives on the web, and if I was building something on the web and had my pick of a random .NET developer and a random PHP one, I'd take the PHP one... because chances are the .NET developer has never deployed something on the internet, and chances are the PHP dev has.