Could you share the full URL you're hitting please? (and also, if you don't mind, which country you're in)
We don't use PHP in the vast majority of our pages so this seems unusual and i'd like to debug more.
well, bbc.com redirects to www.bbc.com,
page works in Firefox,
fails in Chromium (raspbian Linux btw) with that fatal php error.
It would also be useful if you can tell us which IP you're connecting to when you see the error (eg from dev tools).
I get the PHP error about 9 times out of 10 when accessing https://www.bbc.com and https://bbc.co.uk in both Firefox and Chrome (from Switzerland). IP accessed in both cases (i.e. PHP error and successful page load) is 151.101.12.81:443.