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PHP Get Browser Name Version Example Program_PHP Tutorial

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Jul 13, 2016 pm 04:57 PM

agehttpphpuserusenameexistExampleBrowserVersionprogramObtain

To get the browser version, just use HTTP_USER_AGENT directly in php, but to specifically determine which browser and version we need to determine one by one.

Example 1

The code is as follows

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代码如下

复制代码

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';
}
}

Example

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 matching is matched, the part that obtains the number of numbers is in the array in the array

         $browser_ver = $regs[1];
}
elseif (preg_match('/FireFox/([^s]+)/i', $agent, $regs))
{                                                             $browser = 'FireFox'; //When firefox/ is matched, get the number part that follows
         $browser_ver = $regs[1];
}
elseif (preg_match('/Maxthon/i', $agent, $regs))
{
a           $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                                                                                                                                                                                          $browser_ver = $regs[2];
}
elseif (preg_match('/Netscape([d]*)/([^s]+)/i', $agent, $regs))
{
         $browser                                                                                                                                                                                                                                                                          $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';
}
}

Determine whether it is a spider

function is_spider($record = true) //Determine 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']); //将用户浏览器信息转成小写

    foreach ($searchengine_bot AS $key => $value)
    {
        if (strpos($spider, $value) !== false)                    //绝对不等于，避免字符串出现为止为0的这种情况
        {
            $spider = $searchengine_name[$key];            //返回对应的seo/seo.html" target="_blank">搜索引擎名

            return $spider;
        }
    }

$spider = '';

return '';
}

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