哪种方法可以检测用户使用php查看页面的浏览器？
我尝试使用get_browser，它提供了类似的内容：
Array (
[browser_name_regex] => §^.*$§
[browser_name_pattern] => *
[browser] => Default Browser
[version] => 0
[majorver] => 0
[minorver] => 0
[platform] => unknown
[alpha] =>
[beta] =>
[win16] =>
[win32] =>
[win64] =>
[frames] => 1
[iframes] =>
[tables] => 1
[cookies] =>
[backgroundsounds] =>
[cdf] =>
[vbscript] =>
[javaapplets] =>
[javascript] =>
[activexcontrols] =>
[isbanned] =>
[ismobiledevice] =>
[issyndicationreader] =>
[crawler] =>
[cssversion] => 0
[supportscss] =>
[aol] =>
[aolversion] => 0
)
这就是我为IE7，Chrome和Mozilla firefox所获得的。
我尝试了$_SERVER['HTTP_USER_AGENT']，它给了我Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Chrome/8.0.552.237 Safari/534.10
我可以在这里获得一些信息。
那么请告诉我是否有更好的方法来做到这一点，这是一个很好的解决方案，用不同的浏览器显示不同CSS的HTML内容？
答案 0 :(得分：1)
引用this博客：
浏览器检测是一项虚幻的任务，最终注定要失败。浏览器总是在变化，与这些变化保持同步是一项持续的工作。某些浏览器允许用户改变浏览器识别自身的方式，或根本不识别自身。有些防火墙阻止了浏览器识别的发送，因此没有任何浏览器检测方案是完全成功的。
注意：另外，请阅读有关浏览器检测错误操作的更多信息here。
然而，这就是我曾经使用的a script：
<?php
/**
* Class to detect which browser is currently accessing the page/site
* @author Paul Scott
* This class is very loosely based on scripts by Gary White
* @copyright Paul Scott
* @package browser
*/
class browser
{
/**
* @var string $name
*/
var $name = NULL;
/**
* @var string $version
*/
var $version = NULL;
/**
* @var $useragent
*/
var $useragent = NULL;
/**
* @var string $platform
*/
var $platform;
/**
* @var string aol
*/
var $aol = FALSE;
/**
* @var string browser
*/
var $browsertype;
/**
* Class constructor
* @param void
* @return void
*/
function browser()
{
$agent = $_SERVER['HTTP_USER_AGENT'];
//set the useragent property
$this->useragent = $agent;
}
/**
* Method to get the browser details from the USER_AGENT string in
* the PHP superglobals
* @param void
* @return string property platform
*/
function getBrowserOS()
{
$win = eregi("win", $this->useragent);
$linux = eregi("linux", $this->useragent);
$mac = eregi("mac", $this->useragent);
$os2 = eregi("OS/2", $this->useragent);
$beos = eregi("BeOS", $this->useragent);
//now do the check as to which matches and return it
if($win)
{
$this->platform = "Windows";
}
elseif ($linux)
{
$this->platform = "Linux";
}
elseif ($mac)
{
$this->platform = "Macintosh";
}
elseif ($os2)
{
$this->platform = "OS/2";
}
elseif ($beos)
{
$this->platform = "BeOS";
}
return $this->platform;
}
/**
* Method to test for Opera
* @param void
* @return property $broswer
* @return property version
* @return bool false on failure
*/
function isOpera()
{
// test for Opera
if (eregi("opera",$this->useragent))
{
$val = stristr($this->useragent, "opera");
if (eregi("/", $val)){
$val = explode("/",$val);
$this->browsertype = $val[0];
$val = explode(" ",$val[1]);
$this->version = $val[0];
}else{
$val = explode(" ",stristr($val,"opera"));
$this->browsertype = $val[0];
$this->version = $val[1];
}
return TRUE;
}
else {
return FALSE;
}
}
/**
* Method to check for FireFox
* @param void
* @return bool false on failure
*/
function isFirefox()
{
if(eregi("Firefox", $this->useragent))
{
$this->browsertype = "Firefox";
$val = stristr($this->useragent, "Firefox");
$val = explode("/",$val);
$this->version = $val[1];
return true;
}
else {
return FALSE;
}
}
/**
* Method to check for Konquerer
* @param void
* @return prop $browser
* @return prop $version
* @return bool true on success
*/
function isKonqueror()
{
if(eregi("Konqueror",$this->useragent))
{
$val = explode(" ",stristr($this->useragent,"Konqueror"));
$val = explode("/",$val[0]);
$this->browsertype = $val[0];
$this->version = str_replace(")","",$val[1]);
return TRUE;
}
else {
return FALSE;
}
}//end func
/**
* Method to check for Internet Explorer v1
* @param void
* @return bool true on success
* @return prop $browsertype
* @return prop $version
*/
function isIEv1()
{
if(eregi("microsoft internet explorer", $this->useragent))
{
$this->browsertype = "MSIE";
$this->version = "1.0";
$var = stristr($this->useragent, "/");
if (ereg("308|425|426|474|0b1", $var))
{
$this->version = "1.5";
}
return TRUE;
}
else {
return FALSE;
}
}//end function
/**
* Method to check for Internet Explorer later than v1
* @param void
* @return bool true on success
* @return prop $browsertype
* @return prop $version
*/
function isMSIE()
{
if(eregi("msie", $this->useragent) && !eregi("opera",$this->useragent))
{
$this->browsertype = "MSIE";
$val = explode(" ",stristr($this->useragent,"msie"));
$this->browsertype = $val[0];
$this->version = $val[1];
return TRUE;
}
else {
return FALSE;
}
}//end function
/**
* Method to check for Galeon
* @param void
* @return bool true on success
*/
function isGaleon()
{
if(eregi("galeon",$this->useragent))
{
$val = explode(" ",stristr($this->useragent,"galeon"));
$val = explode("/",$val[0]);
$this->browsertype = $val[0];
$this->version = $val[1];
return TRUE;
}
else {
return FALSE;
}
}//end func
/**
* Now we do the tests for browsers I can't test...
* If someone finds a bug, please report it ASAP to me please!
*/
/**
* Method to check for WebTV browser
* @param void
* @return bool true on success
* @return prop $browsertype
* @return prop $version
*/
function isWebTV()
{
if(eregi("webtv",$this->useragent))
{
$val = explode("/",stristr($this->useragent,"webtv"));
$this->browsertype = $val[0];
$this->version = $val[1];
return TRUE;
}
else {
return FALSE;
}
}
/**
* Method to check for BeOS's NetPositive
* @param void
* @return bool true on success
* @return prop $browsertype
* @return prop $version
*/
function isNetPositive()
{
if(eregi("NetPositive", $this->useragent))
{
$val = explode("/",stristr($this->useragent,"NetPositive"));
$this->platform = "BeOS";
$this->browsertype = $val[0];
$this->version = $val[1];
return TRUE;
}
else {
return FALSE;
}
}
/**
* Method to check for MSPIE (Pocket IE)
* @param void
* @return bool true on success
*/
function isMSPIE()
{
if(eregi("mspie",$this->useragent) || eregi("pocket", $this->useragent))
{
$val = explode(" ",stristr($this->useragent,"mspie"));
$this->browsertype = "MSPIE";
$this->platform = "WindowsCE";
if (eregi("mspie", $this->useragent))
$this->version = $val[1];
else {
$val = explode("/",$this->useragent);
$this->version = $val[1];
}
return TRUE;
}
else {
return FALSE;
}
}
/**
* Method to test for iCab
* @param void
* @return bool true on success
*/
function isIcab()
{
if(eregi("icab",$this->useragent))
{
$val = explode(" ",stristr($this->useragent,"icab"));
$this->browsertype = $val[0];
$this->version = $val[1];
return TRUE;
}
else {
return FALSE;
}
}
/**
* Method to test for the OmniWeb Browser
* @param void
* @return bool True on success
*/
function isOmniWeb()
{
if(eregi("omniweb",$this->useragent))
{
$val = explode("/",stristr($this->useragent,"omniweb"));
$this->browsertype = $val[0];
$this->version = $val[1];
return TRUE;
}
else {
return FALSE;
}
}
/**
* Method to check for Phoenix Browser
* @param void
* @return bool true on success
*/
function isPhoenix()
{
if(eregi("Phoenix", $this->useragent))
{
$this->browsertype = "Phoenix";
$val = explode("/", stristr($this->useragent,"Phoenix/"));
$this->version = $val[1];
return TRUE;
}
else {
return FALSE;
}
}
/**
* Method to check for Firebird
* @param void
* @return bool true on success
*/
function isFirebird()
{
if(eregi("firebird", $this->useragent))
{
$this->browsertype = "Firebird";
$val = stristr($this->useragent, "Firebird");
$val = explode("/",$val);
$this->version = $val[1];
return TRUE;
}
else {
return FALSE;
}
}
/**
* Method to check for Mozilla alpha/beta
* @param void
* @return bool true on success
*/
function isMozAlphaBeta()
{
if(eregi("mozilla",$this->useragent) &&
eregi("rv:[0-9].[0-9][a-b]",$this->useragent) &&
!eregi("netscape",$this->useragent))
{
$this->browsertype = "Mozilla";
$val = explode(" ",stristr($this->useragent,"rv:"));
eregi("rv:[0-9].[0-9][a-b]",$this->useragent,$val);
$this->version = str_replace("rv:","",$val[0]);
return TRUE;
}
else {
return FALSE;
}
}//end function
/**
* Method to check for Mozilla Stable versions
* @param void
* @return bool true on success
*/
function isMozStable()
{
if(eregi("mozilla",$this->useragent) &&
eregi("rv:[0-9]\.[0-9]",$this->useragent) &&
!eregi("netscape",$this->useragent))
{
$this->browsertype = "Mozilla";
$val = explode(" ",stristr($this->useragent,"rv:"));
eregi("rv:[0-9]\.[0-9]\.[0-9]",$this->useragent,$val);
$this->version = str_replace("rv:","",$val[0]);
return TRUE;
}
else {
return FALSE;
}
}
/**
* Method to check for Lynx and Amaya
* @param void
* @return bool true on success
*/
function isLynx()
{
if(eregi("libwww", $this->useragent))
{
if (eregi("amaya", $this->useragent))
{
$val = explode("/",stristr($this->useragent,"amaya"));
$this->browsertype = "Amaya";
$val = explode(" ", $val[1]);
$this->version = $val[0];
} else {
$val = explode("/",$this->useragent);
$this->browsertype = "Lynx";
$this->version = $val[1];
}
return TRUE;
}
else {
return FALSE;
}
}
/**
* method to check for safari browser
* @param void
* @return bool true on success
*/
function isSafari()
{
if(eregi("safari", $this->useragent))
{
$this->browsertype = "Safari";
$this->version = "";
return TRUE;
}
else {
return FALSE;
}
}
/**
* Various tests for Netscrape
* @param void
* @return bool true on success
*/
function isNetscape()
{
if(eregi("netscape",$this->useragent))
{
$val = explode(" ",stristr($this->useragent,"netscape"));
$val = explode("/",$val[0]);
$this->browsertype = $val[0];
$this->version = $val[1];
return TRUE;
}
elseif(eregi("mozilla",$this->useragent) &&
!eregi("rv:[0-9]\.[0-9]\.[0-9]",$this->useragent))
{
$val = explode(" ",stristr($this->useragent,"mozilla"));
$val = explode("/",$val[0]);
$this->browsertype = "Netscape";
$this->version = $val[1];
return TRUE;
}
else {
return FALSE;
}
}//end func
/**
* Method to check for AOL connections
* @param void
* @return bool true on Success
*/
function isAOL()
{
if (eregi("AOL", $this->useragent)){
$var = stristr($this->useragent, "AOL");
$var = explode(" ", $var);
$this->aol = ereg_replace("[^0-9,.,a-z,A-Z]", "", $var[1]);
return TRUE;
}
else {
return FALSE;
}
}
/**
* Method to tie them all up and output something useful
* @param void
* @return array
*/
function whatBrowser()
{
$this->getBrowserOS();
$this->isOpera();
$this->isFirefox();
$this->isKonqueror();
$this->isIEv1();
$this->isMSIE();
$this->isGaleon();
$this->isNetPositive();
$this->isMSPIE();
$this->isIcab();
$this->isOmniWeb();
$this->isPhoenix();
$this->isFirebird();
$this->isLynx();
$this->isSafari();
//$this->isMozAlphaBeta();
//$this->isMozStable();
//$this->isNetscape();
$this->isAOL();
return array('browsertype' => $this->browsertype,
'version' => $this->version,
'platform' => $this->platform,
'AOL' => $this->aol);
}
}//end class
?>
如上所述，conditional comments可能仅适用于IE，但您可以解决约90％的问题。
另一方面，您可能会发现Zend_Locale有趣的返回浏览器语言等。
在任何情况下，您最好定位您希望最支持哪种浏览器，专注于该浏览器并最终尝试与其他浏览器兼容。 （但是，“定位标准而不是特定的浏览器”总是一个好主意。）这是一个我们都必须完成的任务（除非使用Echo2，GWT等框架）
答案 1 :(得分：1)
除非你有一个非常复杂的设计，你应该尝试为每个浏览器使用相同的css并跨浏览器优化它，如果你有一个简单明了的html结构，那么效果最好。
这会让你保持理智，因为你不需要维护很多不同的css文件，随着网站的老化，这会变得更加有效。
IE6 可能是一个非常特殊的情况，你可以使用提到的条件语句centr0
答案 2 :(得分：1)
您没有从get_browser中获取有用数据的原因是因为get_browser并非神奇。
它要求您在服务器上有一个名为browsecap.ini的文件，该文件定义了它应该如何计算浏览器的内容以及它的功能。
在get_browser - http://uk3.php.net/get_browser的PHP手册页上有一条关于browsecap.ini的说明。本说明还解释了browsecap.ini不是PHP的标准配置，但提供了一个指向最新版本的链接。
每当发布任何浏览器的新版本时，网站所有者（即您）都需要保持browsecap.ini文件的最新状态，否则您将很快收到不良结果。
但是，即使使用最新的browsecap.ini文件，仍仍然无法依靠get_browser为您提供准确的答案，因为它着眼于确定浏览器可以被浏览器欺骗 - 例如，Firefox有一个选项可以让它假装是各种版本的IE，而大多数其他浏览器都有类似的功能。这将完全愚弄get_browser。没有办法解决这个问题。
更好的方法是在客户端使用Javascript来确定浏览器支持哪些功能。请参阅我的answer to this question以获取有关此问题的进一步建议。
我希望能回答你的问题。
答案 3 :(得分：0)
条件语句在不使用PHP的情况下工作。
答案 4 :(得分：0)
我在这个标题上发现了一个不错的博客 http://quicklesson.info/article/how-to-find-browser-name-using-php