PHP get Browser name version Instance program _php Tutorial

Source: Internet
Author: User
Tags escape quotes
Get the browser version in PHP directly using http_user_agent can be, but to determine the specific browser, what version we need to judge each,

Example 1

The code is as follows Copy Code

function Get_user_browser () {
if (Empty ($_server[' http_user_agent ')) {
Return ';
}

$agent = $_server[' http_user_agent ');
$browser = ";
$browser _ver = ";

if (Preg_match ('/msies ([^s|;] +)/I ', $agent, $regs)) {
$browser = ' Internet Explorer ';
$browser _ver = $regs [1];
} elseif (Preg_match ('/firefox/([^s]+)/I ', $agent, $regs)) {
$browser = ' FireFox ';
$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);
} else {
Return ' Unknow browser ';
}
}

Instance

The code is as follows Copy Code

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 the match to the MSIE, the acquisition of the number of the room in the array $regs
$browser _ver = $regs [1];
}
ElseIf (Preg_match ('/firefox/([^s]+)/I ', $agent, $regs))
{
$browser = ' FireFox '; When matching to firefox/, get the number part 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 Quotes
}
Else
{
Return ' Unknow browser ';
}
}


Judging whether it's a spider

function Is_spider ($record = true)//Judging whether it 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 ',
' Baiduspider+ ',
' MSNBot ',
' Yodaobot ',
' Yahoo! slurp; ',
' Yahoo! Slurp China; ',
' Iaskspider ',
' Sogou web Spider ',
' Sogou push spider '
);

$searchengine _name = Array (
' GOOGLE ',
' GOOGLE ADSENSE ',
' BAIDU ',
' MSN ',
' Yodao ',
' YAHOO ',
' Yahoo China ',
' Iask ',
' SOGOU ',
' SOGOU '
);

$spider = Strtolower ($_server[' http_user_agent '); Turn user browser information into lowercase

foreach ($searchengine _bot as $key = $value)
{
if (Strpos ($spider, $value)!== false)//absolute not equal to avoid the case where the string appears to be 0
{
$spider = $searchengine _name[$key]; Returns the corresponding seo/seo.html "target=" _blank "> Search engine Name

return $spider;
}
}

$spider = ";

Return ';
}

http://www.bkjia.com/PHPjc/631523.html www.bkjia.com true http://www.bkjia.com/PHPjc/631523.html techarticle get the browser version in PHP directly using Http_user_agent, but to determine the specific browser, what version we need to judge each, example 1 code as follows ...

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