/**
* Checks whether or not the user agent is mobile by a given user agent string.
*
* @param string $userAgent
* @return boolean
* @since Method available since Release 0.31.0
*/
function isMobile($userAgent = null)
{
if (Net_UserAgent_Mobile::isDoCoMo($userAgent)) {
return true;
} elseif (Net_UserAgent_Mobile::isEZweb($userAgent)) {
return true;
} elseif (Net_UserAgent_Mobile::isSoftBank($userAgent)) {
return true;
} elseif (Net_UserAgent_Mobile::isWillcom($userAgent)) {
return true;
} elseif (Net_UserAgent_Mobile::isPortable($userAgent)) {
return true;
}
return false;
}
