Hi there,
Thanks for the reply . . .
I checked the phpinfo and the extension path was correct, additionally, I navigated to the extension diretory and saw that the zip.so file was present.
I carried on googling and eventually decided stumbled acorss the following post which seamed to solve the issue
http://blog.scrumpy-jack.com/2009/01/enabling-php-extensions-on-mac.html
Note point 4 with the extra configuration options . . . I ran the ./configure with the following additional commands and it all fell into place.
MACOSX_DEPLOYMENT_TARGET=10.5 CFLAGS="-arch ppc -arch ppc64 -arch i386 -arch x86_64 -g -Os -pipe -no-cpp-precomp" CCFLAGS="-arch ppc -arch ppc64 -arch i386 -arch x86_64 -g -Os -pipe" CXXFLAGS="-arch ppc -arch ppc64 -arch i386 -arch x86_64 -g -Os -pipe" LDFLAGS="-arch ppc -arch ppc64 -arch i386 -arch x86_64 -bind_at_load" ./configure
Hopefully this answer will help someone else if they come across the same issue.
Many thanks for your help.
Jon