Displays a new English word every day with a multiple choice quiz.
PHP5. Often the providers offer the versions 4 and 5 that can be configured by you. There should be a switch available in your webspace configuration panel. If you're not sure ask your provider to ask how you can activate PHP5.
json. This is a php module that is available by most webhosting providers.
Not listed minor versions ( e.g. 0.2.1 ) include bugfixes or code improvements.