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Function get_user_browser ()
{
If (empty ($ _ SERVER ['http _ USER_AGENT '])
{// When the browser does not send the Visitor's Information
Return '';
}
$ Agent = $ _ SERVER ['http _ USER_AGENT '];
$ Browser = '';
$ Browser_ver = '';
If (preg_match ('/MSIEs ([^ s |;] +)/I', $ agent, $ regs ))
{
$ Browser = 'Internet Explorer '; // when MSIE is matched, the room that gets the number is in the array $ regs.
$ Browser_ver = $ regs [1];
}
Elseif (preg_match ('/FireFox/([^ s] +)/I', $ agent, $ regs ))
{
$ Browser = 'Firefox '; // When FireFox/is matched, obtain the digit that follows
$ Browser_ver = $ regs [1];
}
Elseif (preg_match ('/Maxthon/I', $ agent, $ regs ))
{
$ Browser = '(Internet Explorer'. $ browser_ver. ') Maxthon ';
$ Browser_ver = '';
}
Elseif (preg_match ('/Opera [s |/] ([^ s] +)/I', $ agent, $ regs ))
{
$ Browser = 'Opera ';
$ Browser_ver = $ regs [1];
}
Elseif (preg_match ('/OmniWeb/(v *) ([^ s |;] +)/I', $ agent, $ regs ))
{
$ Browser = 'omniweb ';
$ Browser_ver = $ regs [2];
}
Elseif (preg_match ('/Netscape ([d] *)/([^ s] +)/I', $ agent, $ regs ))
{
$ Browser = 'Netscape ';
$ Browser_ver = $ regs [2];
}
Elseif (preg_match ('/safari/([^ s] +)/I', $ agent, $ regs ))
{
$ Browser = 'Safari ';
$ Browser_ver = $ regs [1];
}
Elseif (preg_match ('/NetCaptors ([^ s |;] +)/I', $ agent, $ regs ))
{
$ Browser = '(Internet Explorer'. $ browser_ver. ') NetCaptor ';
$ Browser_ver = $ regs [1];
}
Elseif (preg_match ('/Lynx/([^ s] +)/I', $ agent, $ regs ))
{
$ Browser = 'Lynx ';
$ Browser_ver = $ regs [1];
}
If (! Empty ($ browser ))
{
Return addslashes ($ browser. ''. $ browser_ver); // escape quotation marks
}
Else
{
Return 'unknow browser ';
}
}
Determine if it is a spider
Function is_spider ($ record = true) // You can check whether the image is a spider.
{
Static $ spider = NULL;
If ($ spider! = NULL)
{
Return $ spider ;//
}
If (empty ($ _ SERVER ['http _ USER_AGENT '])
{
$ Spider = '';
Return '';
}
$ Searchengine_bot = array (
'Googlebot ',
'Mediapartners-google ',
'Baidider Ider + ',
'Msnbot ',
'Yodaobot ',
'Yahoo! Slurp ;',
'Yahoo! Slurp china ;',
'Askspider ',
'Sogou web spider ',
'Sogou push spider'
);
$ Searchengine_name = array (
'Google ',
'Google adsens ',
'Baidu ',
'MSN ',
'Yodao ',
'Yahoo ',
'Yahoo China ',
'Iask ',
'Sogou ',
'Sogou'
);
$ Spider = strtolower ($ _ SERVER ['http _ USER_AGENT ']); // Convert the user's browser information to lowercase letters.
Foreach ($ searchengine_bot AS $ key => $ value)
{
If (strpos ($ spider, $ value )! = False) // The value is definitely not equal to the value of 0.
{
$ Spider = $ searchengine_name [$ key]; // return the corresponding seo/seo.html "target =" _ blank "> Search Engine Name
Return $ spider;
}
}
$ Spider = '';
Return '';
} |
