A short description of how you could get a precompiled php tidy extension Mac OSX
At some point php-developers need to use php tidy extension Mac. Usally the activation of tidy.so in the php.ini file suffices. But not for this little extension. The established MAMP application doesn’t provide tidy.so. Nobody knows why. After several hours of research i came to a solution that works considerably and activated tidy.so in PHP version 5.4.10 on MAMP.