Hi JJB,
> Can somebody translate this error message into something I can use
> as pointer of what to look at in debugging this problem?
I think this is really a php issue, not a FreeBSD issue.
4th off of Google ("T_LNUMBER php"), does that help?
http://codewalkers.com/archives/phpcoding/6886.html
Have you looked at the php-4.3.7 CHANGELOG?
Good luck... Nico