PHP简单判断当前使用的是什么浏览器，判断浏览器类型的方法，方便统计网站访问用户使用浏览器的比例。

判断浏览器类型方法

 1 function userBrowser() { 
 2     $user_OSagent = $_SERVER['HTTP_USER_AGENT']; 
 3  
 4     if (strpos($user_OSagent, "Maxthon") && strpos($user_OSagent, "MSIE")) { 
 5         $visitor_browser = "Maxthon(Microsoft IE)"; 
 6     } elseif (strpos($user_OSagent, "Maxthon 2.0")) { 
 7         $visitor_browser = "Maxthon 2.0"; 
 8     } elseif (strpos($user_OSagent, "Maxthon")) { 
 9         $visitor_browser = "Maxthon"; 
10     } elseif (strpos($user_OSagent, "MSIE 9.0")) { 
11         $visitor_browser = "MSIE 9.0"; 
12     } elseif (strpos($user_OSagent, "MSIE 8.0")) { 
13         $visitor_browser = "MSIE 8.0"; 
14     } elseif (strpos($user_OSagent, "MSIE 7.0")) { 
15         $visitor_browser = "MSIE 7.0"; 
16     } elseif (strpos($user_OSagent, "MSIE 6.0")) { 
17         $visitor_browser = "MSIE 6.0"; 
18     } elseif (strpos($user_OSagent, "MSIE 5.5")) { 
19         $visitor_browser = "MSIE 5.5"; 
20     } elseif (strpos($user_OSagent, "MSIE 5.0")) { 
21         $visitor_browser = "MSIE 5.0"; 
22     } elseif (strpos($user_OSagent, "MSIE 4.01")) { 
23         $visitor_browser = "MSIE 4.01"; 
24     } elseif (strpos($user_OSagent, "MSIE")) { 
25         $visitor_browser = "MSIE 较高版本"; 
26     } elseif (strpos($user_OSagent, "NetCaptor")) { 
27         $visitor_browser = "NetCaptor"; 
28     } elseif (strpos($user_OSagent, "Netscape")) { 
29         $visitor_browser = "Netscape"; 
30     } elseif (strpos($user_OSagent, "Chrome")) { 
31         $visitor_browser = "Chrome"; 
32     } elseif (strpos($user_OSagent, "Lynx")) { 
33         $visitor_browser = "Lynx"; 
34     } elseif (strpos($user_OSagent, "Opera")) { 
35         $visitor_browser = "Opera"; 
36     } elseif (strpos($user_OSagent, "Konqueror")) { 
37         $visitor_browser = "Konqueror"; 
38     } elseif (strpos($user_OSagent, "Mozilla/5.0")) { 
39         $visitor_browser = "Mozilla"; 
40     } elseif (strpos($user_OSagent, "Firefox")) { 
41         $visitor_browser = "Firefox"; 
42     } elseif (strpos($user_OSagent, "U")) { 
43         $visitor_browser = "Firefox"; 
44     } else { 
45         $visitor_browser = "其它"; 
46     } 
47     return $visitor_browser; 
48 }

直接调用 userBrowser()

<?php echo "您现在使用的浏览器是：" . userBrowser();?>

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