TYPO3 Core

These informations are important for a service: The extension name of a service implementation (eg. 'saltedpasswords'), the service type (eg. 'auth') and the class implementing the service (service key, eg. 'tx_saltedpasswords_sv1'). t3lib_extMgm::addService() registers a service in global array T3_SERVICES[type][key]. Additinonally it registers the same service as T3_SERVICES[key][key]. The latter registration is actually never used by any other service method in the core and should be removed to simplify this handling a bit.