On Sun, Oct 8, 2017 at 6:11 PM, Russell Blau <russblau@imapmail.org> wrote:
(Tip to
others -- never, ever use the array_key_exists() function unless you
absolutely must, and then be sure to reset() the array before you do.
Otherwise, the function call might never return!)

That sounds like a bug in PHP (or HHVM, if that's what you're using). You should file it upstream with details on how exactly to reproduce it.

Brad Jorsch (Anomie)
Senior Software Engineer
Wikimedia Foundation