用php实现可靠的用户浏览器检测

9 回复 | 直到 8 年前

1

21

Veger 16 年前

get_browser )可能比自己写东西要好,因为它有(更好的)支持,并且会用更新的版本更新。可能还有一些可用的库,用于以可靠的方式获取浏览器id。

解码 $_SERVER['HTTP_USER_AGENT'] 这是很困难的,因为很多浏览器都有非常相似的数据,并且倾向于(错误地)使用这些数据来获取自己的利益。但是如果你真的想解码它们,你可以使用 this page 所有可用的代理ID。此页还显示您的示例输出确实属于IE7 this page ,但正如我所说的,浏览器倾向于使用它为自己的利益,它可以在一个(稍微)其他格式。

2

69

Ekramul Hoque 12 年前

检查一下这个代码,我发现这个很有用。不检查Mozilla 因为大多数浏览器都将其用作用户代理字符串

if(strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== FALSE)
   echo 'Internet explorer';
 elseif(strpos($_SERVER['HTTP_USER_AGENT'], 'Trident') !== FALSE) //For Supporting IE 11
    echo 'Internet explorer';
 elseif(strpos($_SERVER['HTTP_USER_AGENT'], 'Firefox') !== FALSE)
   echo 'Mozilla Firefox';
 elseif(strpos($_SERVER['HTTP_USER_AGENT'], 'Chrome') !== FALSE)
   echo 'Google Chrome';
 elseif(strpos($_SERVER['HTTP_USER_AGENT'], 'Opera Mini') !== FALSE)
   echo "Opera Mini";
 elseif(strpos($_SERVER['HTTP_USER_AGENT'], 'Opera') !== FALSE)
   echo "Opera";
 elseif(strpos($_SERVER['HTTP_USER_AGENT'], 'Safari') !== FALSE)
   echo "Safari";
 else
   echo 'Something else';

3

6

Community Mohan Dere 8 年前

用户代理可能是伪造的,最好不要依赖用户代理字符串,如果您只想检测方向,则可以使用CSS3媒体查询(您可以浏览著名的responsive framework bootstrap的CSS,检查如何使用CSS处理方向部分)

以下是小CSS:

    @media only screen and (max-width: 999px) {
     /* rules that only apply for canvases narrower than 1000px */
    }

    @media only screen and (device-width: 768px) and (orientation: landscape) {
    /* rules for iPad in landscape orientation */
    }

    @media only screen and (min-device-width: 320px) and (max-device-width: 480px) {
    /* iPhone, Android rules here */
    }

阅读更多: About CSS orientation detection

或者可以使用JavaScript查找方向:

    // Listen for orientation changes
    window.addEventListener("orientationchange", function() {
        // Announce the new orientation number
        alert(window.orientation);
    }, false);

阅读更多: About detect orientation using JS

最后,如果您真的想使用用户代理字符串,那么这段代码将对您有很大帮助,几乎可以在每个浏览器上正常工作:

<?php
class BrowserDetection {

    private $_user_agent;
    private $_name;
    private $_version;
    private $_platform;

    private $_basic_browser = array (
       'Trident\/7.0' => 'Internet Explorer 11',
    'Beamrise' => 'Beamrise',
    'Opera' => 'Opera',
    'OPR' => 'Opera',
    'Shiira' => 'Shiira',
    'Chimera' => 'Chimera',
    'Phoenix' => 'Phoenix',
    'Firebird' => 'Firebird',
    'Camino' => 'Camino',
    'Netscape' => 'Netscape',
    'OmniWeb' => 'OmniWeb',
    'Konqueror' => 'Konqueror',
    'icab' => 'iCab',
     'Lynx' => 'Lynx',
    'Links' => 'Links',
    'hotjava' => 'HotJava',
    'amaya' => 'Amaya',
    'IBrowse' => 'IBrowse',
    'iTunes' => 'iTunes',
    'Silk' => 'Silk',
    'Dillo' => 'Dillo', 
    'Maxthon' => 'Maxthon',
    'Arora' => 'Arora',
    'Galeon' => 'Galeon',
    'Iceape' => 'Iceape',
    'Iceweasel' => 'Iceweasel',
    'Midori' => 'Midori',
    'QupZilla' => 'QupZilla',
    'Namoroka' => 'Namoroka',
    'NetSurf' => 'NetSurf',
    'BOLT' => 'BOLT',
    'EudoraWeb' => 'EudoraWeb',
    'shadowfox' => 'ShadowFox',
    'Swiftfox' => 'Swiftfox',
    'Uzbl' => 'Uzbl',
    'UCBrowser' => 'UCBrowser',
    'Kindle' => 'Kindle',
    'wOSBrowser' => 'wOSBrowser',
     'Epiphany' => 'Epiphany', 
    'SeaMonkey' => 'SeaMonkey',
    'Avant Browser' => 'Avant Browser',
    'Firefox' => 'Firefox',
    'Chrome' => 'Google Chrome',
    'MSIE' => 'Internet Explorer',
    'Internet Explorer' => 'Internet Explorer',
     'Safari' => 'Safari',
    'Mozilla' => 'Mozilla'  
    );

     private $_basic_platform = array(
        'windows' => 'Windows', 
     'iPad' => 'iPad', 
      'iPod' => 'iPod', 
    'iPhone' => 'iPhone', 
     'mac' => 'Apple', 
    'android' => 'Android', 
    'linux' => 'Linux',
    'Nokia' => 'Nokia',
     'BlackBerry' => 'BlackBerry',
    'FreeBSD' => 'FreeBSD',
     'OpenBSD' => 'OpenBSD',
    'NetBSD' => 'NetBSD',
     'UNIX' => 'UNIX',
    'DragonFly' => 'DragonFlyBSD',
    'OpenSolaris' => 'OpenSolaris',
    'SunOS' => 'SunOS', 
    'OS\/2' => 'OS/2',
    'BeOS' => 'BeOS',
    'win' => 'Windows',
    'Dillo' => 'Linux',
    'PalmOS' => 'PalmOS',
    'RebelMouse' => 'RebelMouse'   
     ); 

    function __construct($ua = '') {
        if(empty($ua)) {
           $this->_user_agent = (!empty($_SERVER['HTTP_USER_AGENT'])?$_SERVER['HTTP_USER_AGENT']:getenv('HTTP_USER_AGENT'));
        }
        else {
           $this->_user_agent = $ua;
        }
       }

    function detect() {
        $this->detectBrowser();
        $this->detectPlatform();
        return $this;
    }

    function detectBrowser() {
     foreach($this->_basic_browser as $pattern => $name) {
        if( preg_match("/".$pattern."/i",$this->_user_agent, $match)) {
            $this->_name = $name;
             // finally get the correct version number
            $known = array('Version', $pattern, 'other');
            $pattern_version = '#(?<browser>' . join('|', $known).')[/ ]+(?<version>[0-9.|a-zA-Z.]*)#';
            if (!preg_match_all($pattern_version, $this->_user_agent, $matches)) {
                // we have no matching number just continue
            }
            // see how many we have
            $i = count($matches['browser']);
            if ($i != 1) {
                //we will have two since we are not using 'other' argument yet
                //see if version is before or after the name
                if (strripos($this->_user_agent,"Version") < strripos($this->_user_agent,$pattern)){
                    @$this->_version = $matches['version'][0];
                }
                else {
                    @$this->_version = $matches['version'][1];
                }
            }
            else {
                $this->_version = $matches['version'][0];
            }
            break;
        }
       }
   }

    function detectPlatform() {
      foreach($this->_basic_platform as $key => $platform) {
            if (stripos($this->_user_agent, $key) !== false) {
                $this->_platform = $platform;
                break;
            } 
      }
    }

   function getBrowser() {
      if(!empty($this->_name)) {
           return $this->_name;
      }
   }        

   function getVersion() {
       return $this->_version;
    }

    function getPlatform() {
       if(!empty($this->_platform)) {
          return $this->_platform;
       }
    }

    function getUserAgent() {
        return $this->_user_agent;
     }

     function getInfo() {
         return "<strong>Browser Name:</strong> {$this->getBrowser()}<br/>\n" .
        "<strong>Browser Version:</strong> {$this->getVersion()}<br/>\n" .
        "<strong>Browser User Agent String:</strong> {$this->getUserAgent()}<br/>\n" .
        "<strong>Platform:</strong> {$this->getPlatform()}<br/>";
     }
}  

$obj = new BrowserDetection();

echo $obj->detect()->getInfo();

上面的代码几乎适用于所有浏览器,我希望它能对您有所帮助。

4

5

Rob Hruska MegalomanINA 13 年前

class Browser { 
    /** 
    Figure out what browser is used, its version and the platform it is 
    running on. 

    The following code was ported in part from JQuery v1.3.1 
    */ 
    public static function detect() { 
        $userAgent = strtolower($_SERVER['HTTP_USER_AGENT']); 

        // Identify the browser. Check Opera and Safari first in case of spoof. Let Google Chrome be identified as Safari. 
        if (preg_match('/opera/', $userAgent)) { 
            $name = 'opera'; 
        } 
        elseif (preg_match('/webkit/', $userAgent)) { 
            $name = 'safari'; 
        } 
        elseif (preg_match('/msie/', $userAgent)) { 
            $name = 'msie'; 
        } 
        elseif (preg_match('/mozilla/', $userAgent) && !preg_match('/compatible/', $userAgent)) { 
            $name = 'mozilla'; 
        } 
        else { 
            $name = 'unrecognized'; 
        } 

        // What version? 
        if (preg_match('/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/', $userAgent, $matches)) { 
            $version = $matches[1]; 
        } 
        else { 
            $version = 'unknown'; 
        } 

        // Running on what platform? 
        if (preg_match('/linux/', $userAgent)) { 
            $platform = 'linux'; 
        } 
        elseif (preg_match('/macintosh|mac os x/', $userAgent)) { 
            $platform = 'mac'; 
        } 
        elseif (preg_match('/windows|win32/', $userAgent)) { 
            $platform = 'windows'; 
        } 
        else { 
            $platform = 'unrecognized'; 
        } 

        return array( 
            'name'      => $name, 
            'version'   => $version, 
            'platform'  => $platform, 
            'userAgent' => $userAgent 
        ); 
    } 
} 


$browser = Browser::detect();

5

3

bobince 16 年前

这不是一个有用的测试,几乎每个浏览器都将自己识别为Mozilla。

号码

Vary 要包含的标题 User-Agent

但如果你加上 Vary: User-Agent IE的坏缓存代码变得混乱,每次都重新加载页面。所以你赢不了。

如果您必须进行浏览器嗅探,那么可以在客户端使用JavaScript,特别是在IE中,使用条件注释。幸运的是IE支持有条件的评论,因为这是你经常需要解决的浏览器(关于最常见的策略,请参阅scunliffe的答案。)

6

2

Community Mohan Dere 8 年前

老帖子仍然出现在谷歌。get_browser()是最好的解决方案,但编辑php.ini可能是不可能的。根据 this post phpbrowscap 似乎完成了任务。文档不是很好,所以如果你不想它自动更新(默认值是开的),那么你需要设置

$bc->updateMethod = phpbrowscap\Browscap::UPDATE_LOCAL;
$bc->localFile = __DIR__ . "/php_browscap.ini";

7

2

SwiftNinjaPro 6 年前

(parentheses) 除IE外,IE的最后一个 . 我想知道是否只有在最后一次阅读之后 ) 可以提高准确性。

您可能会在不同的用户代理中注意到这一点:

IE (括号后未定义浏览器的例外情况)

$userBrowser = (!empty($_SERVER['HTTP_USER_AGENT'])?$_SERVER['HTTP_USER_AGENT']:getenv('HTTP_USER_AGENT'));
$userBrowser = explode(')', $userBrowser);
$userBrowser = $userBrowser[count($userBrowser)-1];

echo $userBrowser; //this has many inaccurate browsers stripped out

全功能:

function getUserBrowser(){
  $fullUserBrowser = (!empty($_SERVER['HTTP_USER_AGENT'])? 
  $_SERVER['HTTP_USER_AGENT']:getenv('HTTP_USER_AGENT'));
  $userBrowser = explode(')', $fullUserBrowser);
  $userBrowser = $userBrowser[count($userBrowser)-1];

  if((!$userBrowser || $userBrowser === '' || $userBrowser === ' ' || strpos($userBrowser, 'like Gecko') === 1) && strpos($fullUserBrowser, 'Windows') !== false){
    return 'Internet-Explorer';
  }else if((strpos($userBrowser, 'Edge/') !== false || strpos($userBrowser, 'Edg/') !== false) && strpos($fullUserBrowser, 'Windows') !== false){
    return 'Microsoft-Edge';
  }else if(strpos($userBrowser, 'Chrome/') === 1 || strpos($userBrowser, 'CriOS/') === 1){
    return 'Google-Chrome';
  }else if(strpos($userBrowser, 'Firefox/') !== false || strpos($userBrowser, 'FxiOS/') !== false){
    return 'Mozilla-Firefox';
  }else if(strpos($userBrowser, 'Safari/') !== false && strpos($fullUserBrowser, 'Mac') !== false){
    return 'Safari';
  }else if(strpos($userBrowser, 'OPR/') !== false && strpos($fullUserBrowser, 'Opera Mini') !== false){
    return 'Opera-Mini';
  }else if(strpos($userBrowser, 'OPR/') !== false){
    return 'Opera';
  }
  return false;
}

echo 'browser detect: '.getUserBrowser();

我也在chrome、edge和firefox开发人员上测试了这个功能,它工作得很准确(尽管我还没有测试这些浏览器的旧版本)

8

2

phoenix 5 年前

jenssegers/代理人

浏览器/解析器

我的职责是:

function browser($userAgent)
{
    $agent = new \Jenssegers\Agent\Agent();
    $agent->setUserAgent($userAgent);

    $result = new \WhichBrowser\Parser($userAgent);

    $browser = new \Browser($userAgent);

    return new class($agent, $result, $browser)
    {
        public function __construct($agent, $result, $browser)
        {
            $this->agent = $agent;
            $this->result = $result;
            $this->browser = $browser;
        }
        public function device()
        {
            return $this->agent->device() ?: $this->result->device->toString() ?: $this->browser->getPlatform();
        }
        public function browser()
        {
            return $this->agent->browser() ?: $this->result->browser->name ?: $this->browser->getBrowser();
        }
        public function platform()
        {
            return $this->agent->platform() ?: $this->result->os->name ?: $this->browser->getPlatform();
        }
        public function isMobile()
        {
            return $this->agent->isPhone() ?: $this->result->isType('mobile') ?: $this->browser->isMobile();
        }
        public function isTablet()
        {
            return $this->result->isType('tablet') ?: $this->browser->isTablet();
        }
        public function isDesktop()
        {
            return $this->agent->isDesktop() ?: $this->result->isType('desktop') ?: (! $this->browser->isMobile() && ! $this->browser->isTablet());
        }
        public function isRobot()
        {
            return $this->agent->isRobot() ?: $this->browser->isRobot();
        }
    };

使用方法如下:

$browser = browser($userAgent);

$browser->device();
$browser->platform();
$browser->browser();
$browser->isMobile();
$browser->isTablet();
$browser->isDesktop();
$browser->isRobot();

9

1

scunliffe 16 年前

我认为依赖userAgent有点弱,因为它经常是假的。

<link type="text/css" rel="stylesheet" href="styles.css"/><!--for all-->
<!--[if IE]>
  <link type="text/css" rel="stylesheet" href="ie_styles.css"/>
<![endif]-->

或者如果你只想要一个IE6:

<!--[if IE 6]>
  <link type="text/css" rel="stylesheet" href="ie6_styles.css"/>
<![endif]-->

因为它是一个被浏览器忽略的注释。。。除非IE在if测试与当前浏览器匹配时加载它。

10

0

Jumper Pot 11 年前

Check This Code :      
   <?php     

class OS_BR{    
private $agent = "";
private $info = array();

function __construct(){
    $this->agent = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : NULL;
    $this->getBrowser();
    $this->getOS();
}     
function getBrowser(){     
    $browser = array("Navigator"            => "/Navigator(.*)/i",
                     "Firefox"              => "/Firefox(.*)/i",
                     "Internet Explorer"    => "/MSIE(.*)/i",
                     "Google Chrome"        => "/chrome(.*)/i",
                     "MAXTHON"              => "/MAXTHON(.*)/i",
                     "Opera"                => "/Opera(.*)/i",
                     );
    foreach($browser as $key => $value){
        if(preg_match($value, $this->agent)){
            $this->info = array_merge($this->info,array("Browser" => $key));
            $this->info = array_merge($this->info,array(
              "Version" => $this->getVersion($key, $value, $this->agent)));
            break;
        }else{
            $this->info = array_merge($this->info,array("Browser" => "UnKnown"));
            $this->info = array_merge($this->info,array("Version" => "UnKnown"));
        }
    }
    return $this->info['Browser'];
}
function getOS(){
    $OS = array("Windows"   =>   "/Windows/i",
                "Linux"     =>   "/Linux/i",
                "Unix"      =>   "/Unix/i",
                "Mac"       =>   "/Mac/i"
                );

    foreach($OS as $key => $value){
        if(preg_match($value, $this->agent)){
            $this->info = array_merge($this->info,array("Operating System" => $key));
            break;
        }
    }
    return $this->info['Operating System'];
}

function getVersion($browser, $search, $string){
    $browser = $this->info['Browser'];
    $version = "";
    $browser = strtolower($browser);
    preg_match_all($search,$string,$match);
    switch($browser){
        case "firefox": $version = str_replace("/","",$match[1][0]);
        break;

        case "internet explorer": $version = substr($match[1][0],0,4);
        break;

        case "opera": $version = str_replace("/","",substr($match[1][0],0,5));
        break;

        case "navigator": $version = substr($match[1][0],1,7);
        break;

        case "maxthon": $version = str_replace(")","",$match[1][0]);
        break;

        case "google chrome": $version = substr($match[1][0],1,10);
    }
    return $version;
}

function showInfo($switch){
    $switch = strtolower($switch);
    switch($switch){
        case "browser": return $this->info['Browser'];
        break;

        case "os": return $this->info['Operating System'];
        break;

        case "version": return $this->info['Version'];
        break;

        case "all" : return array($this->info["Version"], 
          $this->info['Operating System'], $this->info['Browser']);
        break;

        default: return "Unkonw";
        break;

    }
}
 }    


$obj = new OS_BR();

echo $obj->showInfo('browser');

echo $obj->showInfo('version');

echo $obj->showInfo('os');

echo "<pre>".print_r($obj->showInfo("all"),true)."</pre>"; 

 ?>

11

0

PrismaPixel Studios 8 年前

Edge 在任何一个无人机上。

if(strpos($_SERVER['HTTP_USER_AGENT'], 'Edge') !== FALSE) {
  echo '<link type="text/css" href="ms.css" />';

然后,继续向后工作,因为早期版本的IE没有使用 Trident

} elseif (strpos($_SERVER['HTTP_USER_AGENT'], 'Trident') !== FALSE) {
  echo '<link type="text/css" href="ms.css" />';
} elseif (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== FALSE) {
  echo '<link type="text/css" href="ms.css" />';

接下来我们需要以iOS浏览器为目标,这样后续的查询就不会干扰这个查询。所有iOS浏览器都使用webkit,但Opera Mini除外,它从远程服务器而不是设备进行渲染。这意味着我们可以用 iOS 排除包含 Opera .

} elseif (strpos($_SERVER['HTTP_USER_AGENT'], 'iOS') && !strpos($_SERVER['HTTP_USER_AGENT'], 'Opera') !== FALSE {
  echo '<link type="text/css" href="webkit.css" />';

Gecko 在它的UA中,壁虎是它使用的引擎,因此我们可以瞄准它。通过使用 壁虎 ,我们可以识别在Gecko引擎(即SeaMonkey)上运行的所有浏览器。然而,许多浏览器使用这个术语 like Gecko 出于兼容性的原因,所以我们必须确保匹配 壁虎 而不是 像壁虎

} elseif (strpos($_SERVER['HTTP_USER_AGENT'], 'Gecko') && !strpos($_SERVER['HTTP_USER_AGENT'], 'like Gecko') !== FALSE) {
  echo '<link type="text/css" href="moz.css" />';

接下来,我们将确定Opera浏览器。歌剧院使用了 Presto 引擎到v12的末端。从v15开始,他们开始使用像Chrome一样的闪烁引擎。v12和更早版本在UA中包含了两个v15+没有的独特单词-- 歌剧院 急板地 . 你可以瞄准他们中的任何一个,因为他们总是在一起。对于v15,Opera开始使用 OPR 在UA。

} elseif (strpos($_SERVER['HTTP_USER_AGENT'], 'Presto') !== FALSE) {
  echo '<link type="text/css" href="o.css" />';
} elseif (strpos($_SERVER['HTTP_USER_AGENT'], 'OPR') !== FALSE) {
  echo '<link type="text/css" href="normal.css" />';

接下来是狩猎。Safari使用AppleWebKit作为它的渲染引擎,但我们不能只针对它,因为Chrome也包括这两个引擎 AppleWebKit 和 Safari 出于兼容性的原因。因此,我们需要寻找 AppleWebKit公司 而不是 Chrome

} elseif (strpos($_SERVER['HTTP_USER_AGENT'], 'AppleWebKit') && !strpos($_SERVER['HTTP_USER_AGENT'], 'Chrome') !== FALSE) {
  echo '<link type="text/css" href="webkit.css" />';

最后,我们来看看Chrome。Chrome一直使用AppleWebKit直到v27。随着v28的发布,他们切换到闪烁引擎。我们可以针对两个引擎,但这将需要大量的代码。因为Chrome现在快到v70了,所以我们只需要搜索 铬 因为几乎不可能有人还在运行Chrome的webkit版本。

} elseif (strpos($_SERVER['HTTP_USER_AGENT'], 'Chrome') !== FALSE {
  echo '<link type="text/css" href="normal.css" />';

} else {
  echo '<link type="text/css" href="normal.css" />';
}

现在,我使用css文件引用供应商前缀来定位这里。请随意调整,因为需要有它做什么,你需要它做。我希望这有帮助。