那些显示对方ip信息的图片是怎么制作的呢？今天就由我带领着大家来制作一张吧，当然这些可以很炫酷的签名档了，如果想特别定制的话可以私信我，本来是想在自己博客上提供一个网页自动生成一些选项的，但是本着 * 一切输入都是有害的* 的原则，没有做，见谅了。o(￣▽￣)ゞ
之前逛贴吧，总是能够看到很多很酷玄的签名，就如下面这张虽然很简陋，例如显示出你现在的位置啊，浏览器啦什么的。之前一直不知道是怎么弄得，后来发现原来php是可以搞定的。
'try'
图片的地址.
其实这个图片制作也是很简单的，下面是我的源码，也可以参看Github
其中ip地址是可以采用PHP直接获得的，然后地址查询API是用的http://www.netimpact.com/ 提供的免费服务，每天只可查询250次，所以可能后面的就会出现不了结果的状况。
<?php
/*
*echo "hello";
*/
$u_agent = $_SERVER['HTTP_USER_AGENT'];
$bname = 'Unknown';
$platform = 'Unknown';
$version = '';
if (preg_match('/linux/i', $u_agent)){
$platform = 'Linux';
}
elseif (preg_match('/macintosh|mac os x/i', $u_agent)){
$platform = 'mac';
}
elseif (preg_match('/windows|win32/i', $u_agent)){
$platform = 'windows';
}
if(preg_match('/MSIE/i', $u_agent)&&!preg_match('/Opera/i', $u_agent))
{
$bname = 'Internet Explorer';
$ub = 'MSIE';
}
elseif(preg_match('/Firefox/i',$u_agent))
{
$bname = 'Mozilla Firefox';
$ub = 'Firefox';
}
elseif(preg_match('/Chrome/i',$u_agent))
{
$bname = 'Google Chrome';
$ub = 'Chrome';
}
elseif(preg_match('/Safari/i',$u_agent))
{
$bname = 'Apple Safari';
$ub = 'Safari';
}
elseif(preg_match('/Opera/i',$u_agent))
{
$bname = 'Opera';
$ub = 'Opera';
}
$known = array('Version', $ub, 'other');
$pattern = '#(?<browser>'.join('|', $known).')[/ ]+(?<version>[0-9.|a-zA-Z.]*)#';
if (!preg_match_all($pattern, $u_agent, $matches)) {
}
$i = count($matches['browser']);
if ($i != 1) {
if (strripos($u_agent, "Version") < strripos($u_agent,$ub)){
$version = $matches['version'][0];
}
else {
$version = $matches['version'][1];
}
}
else {
$version = $matches['version'][0];
}
if($version == null || $version=="") {
$version="?";
}
$ua = [
'userAgent' => $u_agent,
'name' => $bname,
'version' => $version,
'platform' => $platform,
'pattern' => $pattern
];
$browser = "Your browser: ".$ua['name']." ".$ua['version']." on ".$ua['platform'];
$img_number = imagecreate(850,60);
$backcolor = imagecolorallocate($img_number,125,185,222);
$textcolor = imagecolorallocate($img_number,255,255,255);
imagefill($img_number,0,0,$backcolor);
$agent=$_SERVER['HTTP_USER_AGENT'];
$ip=$_SERVER['REMOTE_ADDR'];
$host_name = gethostbyaddr($_SERVER['REMOTE_ADDR']);
$url = "http://api.netimpact.com/qv1.php?key=uiWMSWCvUGimIahk&qt=geoip&d=json&q=$ip";
$d = file_get_contents($url);
$details = json_decode($d);
$data = explode(',' , $d);
$info = array(
'country_code' => $data[6] ,
'country_name' => $data[2] ,
'region_name' => $data[1] ,
'city' => $data[0] ,
'latitude' => $data[4] ,
'longitude' => $data[5] ,
'isp' => $data[3] ,
);
$messages = "Dear friends from $data[0], $data[1], $data[2]($data[4], $data[5]).";
$message2 = "Using $agent";
$time = date('Y-m-d H:i:s');
Imagestring($img_number,10,5,0,$messages,$textcolor);
Imagestring($img_number,10,5,20,$browser,$textcolor);
Imagestring($img_number,10,5,40,$time,$textcolor);
header("Content-type: image/jpeg");
imagejpeg($img_number);
?>