Browser inspection class implemented by PHP phpstorm browser settings php simulated browser php outputs pictures to the browser

The example in this article describes the browser inspection class implemented in PHP. Share it with everyone for your reference, the details are as follows:

<&#63;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>";
?>

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I hope this article will be helpful to everyone in PHP programming.

The above introduces the browser inspection class implemented by PHP, including browser and PHP content. I hope it will be helpful to friends who are interested in PHP tutorials.