WURFL/Handlers/CatchAllHandler.php
public function applyConclusiveMatch($userAgent) {
		$deviceId = WURFL_Constants::GENERIC;
		if (WURFL_Handlers_Utils::checkIfStartsWith($userAgent, 'Mozilla')) {
			$deviceId = $this->applyMozillaConclusiveMatch($userAgent);
		} else {
			$tolerance = WURFL_Handlers_Utils::firstSlash($userAgent);
			$deviceId = $this->getDeviceIDFromRIS($userAgent, $tolerance);
		}
		
		return $deviceId;
	}
public function applyConclusiveMatch($userAgent) {
		$deviceId = WURFL_Constants::GENERIC;
		if (WURFL_Handlers_Utils::checkIfStartsWith($userAgent, 'Mozilla')) {
			$deviceId = $this->applyMozillaConclusiveMatch($userAgent);
		} else {
			$tolerance = WURFL_Handlers_Utils::firstSlash($userAgent);
			$deviceId = $this->getDeviceIDFromRIS($userAgent, $tolerance);
		}
		
		return $deviceId;
	}
public function applyConclusiveMatch ( $ userAgent ) { $ deviceId = WURFL_Constants :: GENERIC ; if ( WURFL_Handlers_Utils :: checkIfStartsWith ( $ userAgent , 'Mozilla' ) ) { $ deviceId = $ this -> applyMozillaConclusiveMatch ( $ userAgent ) ; } else { $ tolerance = WURFL_Handlers_Utils :: firstSlash ( $ userAgent ) ; $ deviceId = $ this -> getDeviceIDFromRIS ( $ userAgent , $ tolerance ) ; } return $ deviceId ; }
If UA starts with Mozilla, apply LD with tollerance 5.
If UA does not start with Mozilla, apply RIS on FS

@param string $userAgent
@return string
If UA starts with Mozilla apply LD with tollerance 5 . If UA does not start with Mozilla apply RIS on FS