Thread:Project:Support desk/Message: MediaWiki 1.25 requires at least PHP version 5.3.3, you are using PHP 5.4.24/reply (4)

This seems to happen when the composer install is incomplete. I encountered it with Harej at the hackathon and it was very confusing. For him this composer binary had actually even failed downloading, making it even more complicated to figure out what is going on.