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.
;
?>