2013-05-07 61 views
1

比方说,我们必须保存在MySQL领域在一个表像,用户代理这个从已保存的用户代理检测手机在MySQL只

表:访问

ID(INT)

useragent(varchar 255)

假设我们保存了100k条记录,我们必须找出它们中有多少条是移动的设备和计算机有多少,MySQL有没有办法查询这些信息?我知道如何在PHP中完成,并且可以轻松完成,但在这种情况下,我们需要通过查询从存储的数据中找出结果,而不是使用任何编程语言来解析返回的数据。只是纯粹的MySQL

例如在PHP中您可以使用类似

function detectMobile() 
{ 

$mobile_browser = '0'; 

if (preg_match('/(up.browser|up.link|mmp|symbian|smartphone|midp|wap|phone|android)/i', strtolower($_SERVER['HTTP_USER_AGENT']))) { 
    $mobile_browser++; 
} 

if ((strpos(strtolower($_SERVER['HTTP_ACCEPT']),'application/vnd.wap.xhtml+xml') > 0) or ((isset($_SERVER['HTTP_X_WAP_PROFILE']) or isset($_SERVER['HTTP_PROFILE'])))) { 
    $mobile_browser++; 
}  

$mobile_ua = strtolower(substr($_SERVER['HTTP_USER_AGENT'], 0, 4)); 
$mobile_agents = array(
    'w3c ','acs-','alav','alca','amoi','audi','avan','benq','bird','blac', 
    'blaz','brew','cell','cldc','cmd-','dang','doco','eric','hipt','inno', 
    'ipaq','java','jigs','kddi','keji','leno','lg-c','lg-d','lg-g','lge-', 
    'maui','maxo','midp','mits','mmef','mobi','mot-','moto','mwbp','nec-', 
    'newt','noki','oper','palm','pana','pant','phil','play','port','prox', 
    'qwap','sage','sams','sany','sch-','sec-','send','seri','sgh-','shar', 
    'sie-','siem','smal','smar','sony','sph-','symb','t-mo','teli','tim-', 
    'tosh','tsm-','upg1','upsi','vk-v','voda','wap-','wapa','wapi','wapp', 
    'wapr','webc','winw','winw','xda ','xda-'); 

if (in_array($mobile_ua,$mobile_agents)) { 
    $mobile_browser++; 
} 

if (strpos(strtolower($_SERVER['ALL_HTTP']),'OperaMini') > 0) { 
    $mobile_browser++; 
} 

if (strpos(strtolower($_SERVER['HTTP_USER_AGENT']),'windows') > 0) { 
    $mobile_browser = 0; 
} 

if(strpos(strtolower($_SERVER['HTTP_USER_AGENT']),'ipad') > 0) 
{ 
    $mobile_browser++; 
} 




if ($mobile_browser > 0) { 
    return true; 
} 
else { 
    return false; 
} 

} 
+0

如果您告诉我们您将如何使用PHP进行操作,这将有所帮助。 – fancyPants 2013-05-07 05:21:19

+0

在PHP中,我们将针对已知移动设备用户代理列表运行正则表达式并获得几乎肯定的答案,但我不知道如何在不涉及PHP的情况下在MySQL查询中运行这些多个正则表达式 – 2013-05-07 05:24:16

回答

0

我已经使用了下面的sql来统计数字或平板电脑,手机和其他设备。使用Like查询比使用正则表达式更优化。

SELECT 
COUNT(*) total, 
COUNT(IF(useragent LIKE '%tablet%' or useragent LIKE '%ipad%', 1, NULL)) AS tablets, 
COUNT(IF(useragent LIKE '%mobile%' AND useragent NOT LIKE '%tablet%' AND useragent NOT LIKE '%ipad%', 1, NULL)) AS mobile, 
COUNT(IF(useragent NOT LIKE '%tablet%' AND useragent NOT LIKE '%ipad%' AND useragent NOT LIKE '%mobile%', 1, NULL)) AS other 
FROM visit