I installed several CMS that require Composer.
Since 2 days i got error and can\'t go on.
[RuntimeException] You must enable the openssl extension to dow
which version you install is also important. there is a bug in openssl 0.9.8. read more here: https://github.com/composer/composer/issues/2021
In doubt (tks to Sven for pushing me that direction ;) ), I reinstall using port the openssl extension.
sudo port install php5-openssl
It didn't download files but reset something in the preferences and i was able to run Composer install properly on Tiki Wiki CMS (the CMS i'm using most).