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原标题:How to get user agent in PHP

I m利用这份联合材料法了解浏览器的用途。

<script>
  document.write(navigator.appName);
</script>

我也希望得到这一信息。 类似于《加拿大刑法》:

if ($appName == "Internet Explorer") {
  // blabla
}

我如何能够这样做?

最佳回答

使用本地的PHP<代码>_SERVER[ HTTP_USER_AGENT]变量。

问题回答

我使用:

<?php
$agent = $_SERVER["HTTP_USER_AGENT"];

if( preg_match( /MSIE (d+.d+);/ , $agent) ) {
  echo "You re using Internet Explorer";
} else if (preg_match( /Chrome[/s](d+.d+)/ , $agent) ) {
  echo "You re using Chrome";
} else if (preg_match( /Edge/d+/ , $agent) ) {
  echo "You re using Edge";
} else if ( preg_match( /Firefox[/s](d+.d+)/ , $agent) ) {
  echo "You re using Firefox";
} else if ( preg_match( /OPR[/s](d+.d+)/ , $agent) ) {
  echo "You re using Opera";
} else if (preg_match( /Safari[/s](d+.d+)/ , $agent) ) {
  echo "You re using Safari";
}

You can use the jQuery ajax method link if you want to pass data from client to server. In this case you can use $_SERVER[ HTTP_USER_AGENT ] variable to found browser user agent.

也可以使用: php原住址:get_browser()。

IMPORTANT NOTE: You should have a browscap.ini file.

PHP 8有以下特征:$_SERVER[ HTTP_SEC_CH_UA]Sec-CH-UA

if (  strpos ( $_SERVER[ HTTP_SEC_CH_UA ], Opera    ){
       //        
    }




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