HTML_QuickForm2 makes use of Spl's Countable and Iterator classes.
Hmm. This must be triggered somewhere else because the SystemCheck happens earlier, and doesn't use HTML_QuickForm2.
I'm not sure how to replicate (ie. how do you install without SPL)?
is there a fatal error in this case?
I'll fix this. I just have to build an earlier version of php where I can disable SPL.
Ever since Piwik 0.1, Zend_Registry subclasses SPL's ArrayObject. If SPL is disabled, Piwik silently fails in FrontController init.
probably the only place to add the test is in /core/testMinimumPhpVersion.php
(In ) fixes #1813 - added SPL test to testMinimumPhpVersion.php
(In ) refs #1813 - fix r3356