undefined symbol "php7_module" in libphp7.so?

[scratch65535 at att.net]

Thanks, Yasu & Carmel.  Bizarrely, the md5 I get is different to
both of yours:

d739fb09ede2917b54c06eab05130e10

Nor is any of them the same as the one on my server-of-all-work,
running 10.2R and php 7.0 with apache 2.4: 

10f8f74874296c48c9e099c67ca26be9

nor is the one I get when I replace the php72 built from ports
with the prebuilt package:

a30b75c6957b6e12f144984dde1f7b5f

I'm baffled.  I've no clue what's going on here.  I'm used to
libraries within a major release not changing unless called out
in the release notes, which this wasn't.