public static function details($user_agent)
{
if (is_null(self::$browscap)) {
$cache_dir = self::BROWSCAP_CACHE_DIR;
if (!is_dir($cache_dir)) {
mkdir($cache_dir);
}
self::$browscap = new Browscap($cache_dir);
}
// Reset the user agents cache if we've cached too many
if (count(self::$user_agents) > self::MAX_USER_AGENTS_COUNT) {
self::$user_agents = array();
}
// If user agent info is cached then return it
if ($details = array_key(self::$user_agents, $user_agent)) {
return $details;
}
// Look up the user agent using the browscap.ini file
$browscap = self::$browscap->getBrowser($user_agent, TRUE);
$browser = array_key($browscap, 'Browser');
// e.g. "IE"
$version = array_key($browscap, 'Parent');
// e.g. "IE 9.0"
$version = $version && $browser && strpos($version, $browser) === 0 ? substr($version, strlen($browser) + 1) : $version;
$op_sys = array_key($browscap, 'Platform');
$is_mobile = array_key($browscap, 'isMobileDevice');
$details = array('op_sys' => $op_sys, 'browser' => $browser, 'version' => $version, 'browser_version' => $browser . ($version ? " {$version}" : ''), 'is_robot' => $op_sys == 'unknown' ? TRUE : FALSE, 'is_mobile' => $is_mobile);
return self::$user_agents[$user_agent] = new Object($details);
}
