php 获取用户IP与IE信息程序

2016-06-08 17:29:44原创640

php 获取用户IP与IE信息程序

function onlineip()
{
global $_SERVER;
if(getenv('HTTP_CLIENT_IP'))
{
$onlineip = getenv('HTTP_CLIENT_IP');
}
elseif(getenv('HTTP_X_FORWARDED_FOR'))
{
list($onlineip) = explode(',', getenv('HTTP_X_FORWARDED_FOR'));
}
elseif(getenv('REMOTE_ADDR'))
{
$onlineip = getenv('REMOTE_ADDR');
}
else
{
$onlineip = $_SERVER['REMOTE_ADDR'];
}
return $onlineip;
}
function imgdecode($string)
{
global $_SERVER;

$key = md5(onlineip()."\t".$_SERVER['HTTP_USER_AGENT']);
$coded = '';
$string = base64_decode($string);
$keylength = strlen($key);
for($i = 0; $i < strlen($string); $i += $keylength)
{
$coded .= substr($string, $i, $keylength) ^ $key;
}
return $coded;
}

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