如何使用JavaScript或PHP检测用户是否未使用任何浏览器Chrome,Firefox或Internet Explorer?
答案 0 :(得分:15)
我在JS中找到的最佳方法是Quirksmode。我为PHP制作了一个适用于常见浏览器的内容:
$browser = array(
'version' => '0.0.0',
'majorver' => 0,
'minorver' => 0,
'build' => 0,
'name' => 'unknown',
'useragent' => ''
);
$browsers = array(
'firefox', 'msie', 'opera', 'chrome', 'safari', 'mozilla', 'seamonkey', 'konqueror', 'netscape',
'gecko', 'navigator', 'mosaic', 'lynx', 'amaya', 'omniweb', 'avant', 'camino', 'flock', 'aol'
);
if (isset($_SERVER['HTTP_USER_AGENT'])) {
$browser['useragent'] = $_SERVER['HTTP_USER_AGENT'];
$user_agent = strtolower($browser['useragent']);
foreach($browsers as $_browser) {
if (preg_match("/($_browser)[\/ ]?([0-9.]*)/", $user_agent, $match)) {
$browser['name'] = $match[1];
$browser['version'] = $match[2];
@list($browser['majorver'], $browser['minorver'], $browser['build']) = explode('.', $browser['version']);
break;
}
}
}
答案 1 :(得分:7)
以下是JavaScript代码,您可以通过它轻松检测浏览器。
var userAgent = navigator.userAgent.toLowerCase();
// Figure out what browser is being used.
var Browser = {
Version: (userAgent.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1],
Chrome: /chrome/.test(userAgent),
Safari: /webkit/.test(userAgent),
Opera: /opera/.test(userAgent),
IE: /msie/.test(userAgent) && !/opera/.test(userAgent),
Mozilla: /mozilla/.test(userAgent) && !/(compatible|webkit)/.test(userAgent),
Check: function() { alert(userAgent); }
};
if (Browser.Chrome || Browser.Mozilla) {
// Do your stuff for Firefox and Chrome.
}
else if (Browser.IE) {
// Do something related to Internet Explorer.
}
else {
// The browser is Safari, Opera or some other.
}
答案 2 :(得分:6)
PHP实际上有一个函数,get_browser。
答案 3 :(得分:5)
来自get_browser()的PHP代码完全适用于我;)
<?php
function getBrowser()
{
$u_agent = $_SERVER['HTTP_USER_AGENT'];
$bname = 'Unknown';
$platform = 'Unknown';
$version= "";
//First get the platform?
if (preg_match('/linux/i', $u_agent)) {
$platform = 'linux';
}
elseif (preg_match('/macintosh|mac os x/i', $u_agent)) {
$platform = 'mac';
}
elseif (preg_match('/windows|win32/i', $u_agent)) {
$platform = 'windows';
}
// Next get the name of the useragent yes separately and for good reason.
if (preg_match('/MSIE/i',$u_agent) && !preg_match('/Opera/i',$u_agent))
{
$bname = 'Internet Explorer';
$ub = "MSIE";
}
elseif (preg_match('/Firefox/i',$u_agent))
{
$bname = 'Mozilla Firefox';
$ub = "Firefox";
}
elseif (preg_match('/Chrome/i',$u_agent))
{
$bname = 'Google Chrome';
$ub = "Chrome";
}
elseif (preg_match('/Safari/i',$u_agent))
{
$bname = 'Apple Safari';
$ub = "Safari";
}
elseif (preg_match('/Opera/i',$u_agent))
{
$bname = 'Opera';
$ub = "Opera";
}
elseif (preg_match('/Netscape/i',$u_agent))
{
$bname = 'Netscape';
$ub = "Netscape";
}
// Finally get the correct version number.
$known = array('Version', $ub, 'other');
$pattern = '#(?<browser>' . join('|', $known) .
')[/ ]+(?<version>[0-9.|a-zA-Z.]*)#';
if (!preg_match_all($pattern, $u_agent, $matches)) {
// we have no matching number just continue
}
// See how many we have.
$i = count($matches['browser']);
if ($i != 1) {
//we will have two since we are not using 'other' argument yet
//see if version is before or after the name
if (strripos($u_agent,"Version") < strripos($u_agent,$ub)){
$version= $matches['version'][0];
}
else {
$version= $matches['version'][1];
}
}
else {
$version= $matches['version'][0];
}
// Check if we have a number.
if ($version==null || $version=="") {$version="?";}
return array(
'userAgent' => $u_agent,
'name' => $bname,
'version' => $version,
'platform' => $platform,
'pattern' => $pattern
);
}
// Now try it.
$ua=getBrowser();
$yourbrowser= "Your browser: " . $ua['name'] . " " . $ua['version'] . " on " .
$ua['platform'] . " reports: <br >" . $ua['userAgent'];
print_r($yourbrowser);
?>
答案 4 :(得分:2)
1)99.9%准确的探测器:BrowserDetection.php(Examples)
2)最简单的功能(但欺骗不准确):
<?php
function get_user_browser()
{
$u_agent = $_SERVER['HTTP_USER_AGENT']; $ub = '';
if(preg_match('/MSIE/i',$u_agent)) { $ub = "ie"; }
elseif(preg_match('/Firefox/i',$u_agent)) { $ub = "firefox"; }
elseif(preg_match('/Safari/i',$u_agent)) { $ub = "safari"; }
elseif(preg_match('/Chrome/i',$u_agent)) { $ub = "chrome"; }
elseif(preg_match('/Flock/i',$u_agent)) { $ub = "flock"; }
elseif(preg_match('/Opera/i',$u_agent)) { $ub = "opera"; }
return $ub;
}
?>
答案 5 :(得分:1)
我使用PHP的类 Browser Detect 。
答案 6 :(得分:1)
在PHP中,我使用$_SERVER['HTTP_USER_AGENT']
值并使用regex或stristr攻击它。
答案 7 :(得分:1)
这可能是了解浏览器未使用IE,Chrome或FF的简单方法
if (navigator.userAgent.indexOf("Chrome") != -1)
BName = "Chrome";
if (navigator.userAgent.indexOf("Firefox") != -1)
BName = "Firefox";
if (navigator.userAgent.indexOf("MSIE") != -1)
BName = "IE";
if(BName=='Chrome' || BName=='Firefox' || BName=='IE')
BName="Not other";
else BName="other";
alert(BName);
答案 8 :(得分:1)
JS中的这个类
function CSystemInfo(){
var self = this;
self.nScreenWidth = 0;
self.nScreenHeight = 0;
self.sPlatform = "Unknown";
self.sBrowser = "Unknown";
var init = function(){
self.nScreenWidth = screen.width;
self.nScreenHeight = screen.height;
self.sPlatform = navigator.platform;
self.sBrowser = getBrowser();
}
var getBrowser = function(){
var userAgent = navigator.userAgent;
var version = "UNKNOWN VERSION";
if (userAgent.toLowerCase().indexOf('msie') > -1) {
var ieversionreg = /(MSIE ([0-9]{1,2}\.[0-9]{1,2}))/;
if(ieversionreg.test(userAgent)){
version = ieversionreg.exec(userAgent)[2];
}
return 'Internet Explorer '+version;
}
else if (userAgent.toLowerCase().indexOf('firefox') > -1){
var ffversionreg = /(Firefox\/(.+))/;
if(ffversionreg.test(userAgent)){
version = ffversionreg.exec(userAgent)[2];
}
return 'Firefox '+version;
}
else if (userAgent.toLowerCase().indexOf('chrome') > -1){
var chromereg = /Chrome\/([0-9]{1,2})/;
if(chromereg.test(userAgent)){
version = chromereg.exec(userAgent)[1];
}
return 'Google Chrome '+version;
}
else return 'Unknown';
}
init();
}
通过调用
实例化它var oInfo = new CSystemInfo();
// Retrieve infos
oInfo.sBrowser; // Google Chrome 21
答案 9 :(得分:0)
使用JavaScript执行此操作的最简单方法是
<script language="Javascript">
location.href = 'URL_TO_FORWARD_TO';
</script>
在location.href
中,你可以像这样使用PHP变量:
<script language="Javascript">
location.href = '<?php echo $_SERVER['QUERY_STRING']; ?>';
</script>
这将获取一个URL作为对PHP脚本的查询并转发到该URL。该脚本将被调用如下:
http://your-server/path-to-script/script.php?URL_TO_FORWARD_TO
祝你好运。
答案 10 :(得分:0)
IE 11的引入使得这种方法已经过时,尽管我已将其更新以考虑到这一点。使用JavaScript和特征检测要好得多。当然,有时候你只想完全杀死浏览器和/或必须适应可能禁用JavaScript的用例。
我不知道OP的最终目标,但就我而言,我真正想做的就是反弹Balmer的浏览器。由于正则表达式类似于另一个解决方案导致的误报,我们所拥有的IE 10用户失败了。 (我不知道这个帖子中的正则表达式是否会导致同样的误报,但我确实知道这个页面上的正则与我们的那个不一样。)
我制作了一种不依赖于正则表达式的方法(本身)。我也不想遇到我必须编辑脚本以适应新浏览器的场景,但是,编辑脚本以便将来过期的浏览器是可以接受的。
function obsolete_browser(){
$ua = (isset($_SERVER['HTTP_USER_AGENT']))?$_SERVER['HTTP_USER_AGENT']:'';
$browser = explode(';',$ua);
foreach($browser as &$b){
$b = trim($b); // remove the spaces
$c = explode('.',$b); // major revision only please
if($c[0]){ $b = $c[0]; }
}
if(in_array("Trident/7",$browser)){ // IE11
return false;
} else if(in_array('MSIE 4',$browser)
|| in_array('MSIE 5',$browser)
|| in_array('MSIE 6',$browser)
|| in_array('MSIE 7',$browser)
// || in_array('MSIE 8',$browser) // we'll need this soon enough, right?
|| in_array('BOLT/2',$browser) // worst browser ever
){
return true;
}
return false;
}
答案 11 :(得分:0)
只需 Java脚本即可检测到 浏览器 ,只需调用此功能:
<script>
function which_browser() {
//browser_flag --> 0 --> Opera, Chrome, Safari, Firefox
//browser_flag --> 1 --> Internet Explorer
var browser_flag = 0;
if((navigator.userAgent.indexOf("Opera") || navigator.userAgent.indexOf('OPR')) != -1 )
{
alert('Opera --> browser_flag = ' + browser_flag);
}
else if(navigator.userAgent.indexOf("Chrome") != -1 )
{
alert('Chrome --> browser_flag = ' + browser_flag);
}
else if(navigator.userAgent.indexOf("Safari") != -1)
{
alert('Safari --> browser_flag = ' + browser_flag);
}
else if(navigator.userAgent.indexOf("Firefox") != -1 )
{
alert('Firefox --> browser_flag = ' + browser_flag);
}
else if((navigator.userAgent.indexOf("MSIE") != -1 ) || (!!document.documentMode == true )) //IF IE > 10
{
browser_flag = 1;
alert('IE --> browser_flag = ' + browser_flag);
}
else
{
alert('unknown');
}
return browser_flag;
}
</script>
如果IE, browser_flag 获得1, 否则 browser_flag 为0!
当然可调