浏览器检查工具:PHP浏览器检查类

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.\"
\";
echo $test->BROWSER.\"
\";
echo $test->PLATFORM.\"
\";
echo $test->VERSION.\"
\";
echo $test->MAJORVER.\"
\";
echo $test->MINORVER.\"
\";
?>

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