检测注流浏览器及其版本
- define('IE', 1);
- define('FIREFOX', 2);
- define('CHROME', 3);
- define('OPERA', 4);
- class UserAgentDetect
- {
- static $version = array();
-
- static $userAgent = '';
-
- static function getUserAgent()
- {
- $header = getallheaders();
- self :: $userAgent = $header['User-Agent'];
- }
- function findUserAgentByKey($ua, $key)
- {
- $len = strlen($key);
- $start = strpos($ua, $key);
-
- $pos = strpos($ua, ' ', $start + $len + 1);
-
- return substr($ua, $start + $len, $pos - $len - $start);
- }
- static function detectUserAgent()
- {
- self :: getUserAgent();
-
- if (strpos(self :: $userAgent, 'MSIE') != null)
- {
- self :: $version[] = IE;
- self :: $version[] =self:: findUserAgentByKey(self :: $userAgent, 'MSIE');
- }
- else if (strpos(self :: $userAgent, 'Gecko/') != null)
- {
-
- self :: $version[] = FIREFOX;
- self :: $version[] =self:: findUserAgentByKey(self :: $userAgent, 'Firefox/');
- }
- else if (strpos(self :: $userAgent, 'AppleWebKit/') != null)
- {
- self :: $version[] = CHROME;
- self :: $version[] = self:: findUserAgentByKey(self :: $userAgent, 'Chrome/');
- }
- else if (strpos(self :: $userAgent, 'Presto/') != null)
- {
- self :: $version[] = OPERA;
- self :: $version[] = self:: findUserAgentByKey(self :: $userAgent, 'Opera/');
- }
- else
- {
- }
-
- return self :: $version;
- }
-
-
- function matchUserAgent($ua, $key)
- {
- preg_match("/$key.([^\s]*?)\s/", $ua, $out);
-
- return $out[1];
- }
- }
- $ua=UserAgentDetect::detectUserAgent();
-
- print_r($ua);
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