Yes, only short of touting the new 'best' programming language. Thanks for the demonstration. Name a programming language without horrid drawbacks, I dare you.
By the way, specifically PHP isn't important here; the question is really "Do you only know one language?"
All-in-all it's plenty fine when I see people writing off PHP devs, in my case, it's mutual. I don't write off ASP devs just because I think ASP is restrictive to my style of programming. There are "better" tools for the job, but often the claim that something is the wrong tool is rooted in... well.. yeah, I'll stop there.
(And I am not even sure about Fortran.)