PHP implements methods and examples of browser inspection classes

This article mainly introduces the browser inspection class implemented by PHP, and analyzes the related skills of PHP browser operation in detail in the form of examples. It is very simple and practical. Friends in need can refer to it

The details are as follows:

<?php
//原作者：epsilon7
//SonyMusic([email]sonymusic@163.net[/email])
class BrowserDetector {
 var $UA = "";  //$HTTP_USER_AGENT的内容
 var $BROWSER= "Unknown";  //浏览器类型
 var $PLATFORM  = "Unknown";  //操作系统
 var $VERSION= "";  //浏览器版本号
 var $MAJORVER  = "";  //浏览器主版本号
 var $MINORVER  = "";  //浏览器副版本号
 /* 构造函数开始 */
 function BrowserDetector(){
  $this->UA  = getenv(HTTP_USER_AGENT);
  $preparens = "";
  $parens = "";
  $i = strpos($this->UA,"(");
  if ($i >= 0)  {
    $preparens = trim(substr($this->UA,0,$i));
    $parens = substr($this->UA,$i+1,strlen($this->UA));
    $j = strpos($parens,")");
    if($j>=0) {
     $parens = substr($parens,0,$j);
    }
  }
  else  {
    $preparens = $this->UA;
  }
  $browVer = $preparens;
  $token = trim(strtok($parens,";"));
  while($token)  {
    if($token=="compatible") {
    }
    elseif(preg_match("/MSIE/i","$token")) {
     $browVer = $token;
    }
    elseif(preg_match("/Opera/i","$token")) {
     $browVer = $token;
    }
    elseif(preg_match("/X11/i","$token") || preg_match("/SunOS/i","$token") || preg_match ("/Linux/i","$token")) {
     $this->PLATFORM  = "Unix";
    }
    elseif(preg_match("/Win/i","$token")) {
     $this->PLATFORM  = $token;
    }
    elseif(preg_match("/Mac/i","$token") || preg_match("/PPC/i","$token")) {
     $this->PLATFORM  = $token;
    }
    $token = strtok(";");
  }
  $msieIndex = strpos($browVer,"MSIE");
  if($msieIndex >= 0)  {
    $browVer = substr($browVer,$msieIndex,strlen($browVer));
  }
  $leftover  = "";
  if(substr($browVer,0,strlen("Mozilla")) == "Mozilla")  {
    $this->BROWSER = "Netscape";
    $leftover=substr($browVer,strlen("Mozilla")+1,strlen($browVer));
  }
  elseif(substr($browVer,0,strlen("Lynx")) == "Lynx")  {
    $this->BROWSER = "Lynx";
    $leftover=substr($browVer,strlen("Lynx")+1,strlen($browVer));
  }
  elseif(substr($browVer,0,strlen("MSIE")) == "MSIE") {
    $this->BROWSER = "IE";
    $leftover=substr($browVer,strlen("MSIE")+1,strlen($browVer));
  }
  elseif(substr($browVer,0,strlen("Microsoft Internet Explorer")) == "Microsoft Internet Explorer")  {
    $this->BROWSER = "IE";
    $leftover=substr($browVer,strlen("Microsoft Internet Explorer")+1,strlen($browVer));
  }
  elseif(substr($browVer,0,strlen("Opera")) == "Opera")  {
    $this->BROWSER = "Opera";
    $leftover=substr($browVer,strlen("Opera")+1,strlen($browVer));
  }
  $leftover = trim($leftover);
  $i=strpos($leftover," ");
  if($i > 0)  {
    $this->VERSION = substr($leftover,0,$i);
  }
  else  {
    $this->VERSION = $leftover;
  }
  $j = strpos($this->VERSION,".");
  if($j >= 0)  {
    $this->MAJORVER = substr($this->VERSION,0,$j);
    $this->MINORVER = substr($this->VERSION,$j+1,strlen($this->VERSION));
  }
  else  {
    $this->MAJORVER = $this->VERSION;
  }
 }
}
//测试程序开始
$test=new browserdetector;
echo $test->UA."<br>";
echo $test->BROWSER."<br>";
echo $test->PLATFORM."<br>";
echo $test->VERSION."<br>";
echo $test->MAJORVER."<br>";
echo $test->MINORVER."<br>";
?>

Summary: The above is the entire content of this article, I hope it will be helpful to everyone's study.

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