当你在发送邮件时,你或许很想知道该邮件是否被对方已阅读。这里有段非常有趣的代码片段能够显示对方IP地址记录阅读的实际日期和时间。
<?
error_reporting(0);
Header(\"Content-Type: image/jpeg\");
//Get IP
if (!empty($_SERVER[\'HTTP_CLIENT_IP\']))
{
$ip=$_SERVER[\'HTTP_CLIENT_IP\'];
}
elseif (!empty($_SERVER[\'HTTP_X_FORWARDED_FOR\']))
{
$ip=$_SERVER[\'HTTP_X_FORWARDED_FOR\'];
}
else
{
$ip=$_SERVER[\'REMOTE_ADDR\'];
}
//Time
$actual_time = time();
$actual_day = date(\'Y.m.d\', $actual_time);
$actual_day_chart = date(\'d/m/y\', $actual_time);
$actual_hour = date(\'H:i:s\', $actual_time);
//GET Browser
$browser = $_SERVER[\'HTTP_USER_AGENT\'];
//LOG
$myFile = \"log.txt\";
$fh = fopen($myFile, \'a+\');
$stringData = $actual_day . \' \' . $actual_hour . \' \' . $ip . \' \' . $browser . \' \' . \"\\r\\n\";
fwrite($fh, $stringData);
fclose($fh);
//Generate Image (Es. dimesion is 1x1)
$newimage = ImageCreate(1,1);
$grigio = ImageColorAllocate($newimage,255,255,255);
ImageJPEG($newimage);
ImageDestroy($newimage);
?>
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