I have a Macports installed version of php5, that is missing the curl extension. phpinfo shows /opt/local/etc/php5/php.ini as the location for php.ini, with one of the additional .ini files listed as /opt/local/var/db/php5/curl.ini
The contents of curl.ini: extension=curl.so
If I do a locate curl.so I get /opt/local/lib/php/extensions/no-debug-non-zts-20090626/curl.so /opt/local/var/macports/software/php5-curl/5.3.2_0/opt/local/lib/php/extensions/no-debug-non-zts-20090626/curl.so
Using curl_init() in a test.php file gives me this error: Fatal error: Call to undefined function curl_init()
I'm assuming it either isn't finding the curl.so file, but I can't find extension_dir set in the php.ini and other extensions seem to work fine.