PHP Curl Forged IP Address and header information code example _php Tutorial

PHP Curl Forged IP Address and header information code example

This article mainly introduces the PHP curl forged IP Address and header information code example, this article gives the server-side and client implementation code, provide the forgery function and server-side detection code, the need for friends can refer to the following

Although Curl is powerful, but can only forge $_server["Http_x_forwarded_for", for most IP address detection procedures, $_server["REMOTE_ADDR"] is difficult to forge:

The first is the client.php code.

The code is as follows:

$headers [' client-ip '] = ' 202.103.229.40 ';

$headers [' x-forwarded-for '] = ' 202.103.229.40 ';

$HEADERARR = Array ();

foreach ($headers as $n = = $v) {

$HEADERARR [] = $n. ': '. $v;

}

Ob_start ();

$ch = Curl_init ();

curl_setopt ($ch, Curlopt_url, "http://localhost/curl/server.php");

curl_setopt ($ch, Curlopt_httpheader, $HEADERARR); Constructing IP

curl_setopt ($ch, Curlopt_referer, "http://www.163.com/"); Construction route

curl_setopt ($ch, Curlopt_header, 1);

Curl_exec ($ch);

Curl_close ($ch);

$out = Ob_get_contents ();

Ob_clean ();

Echo $out;

And then the server.php.

The code is as follows:

function GetIP () {

if (!emptyempty ($_server["Http_client_ip"))

$cip = $_server["Http_client_ip"];

else if (!emptyempty ($_server["http_x_forwarded_for"]))

$cip = $_server["Http_x_forwarded_for"];

else if (!emptyempty ($_server["REMOTE_ADDR"]))

$cip = $_server["REMOTE_ADDR"];

Else

$CIP = "Cannot get!";

return $CIP;

}

echo "
Access IP: ". GetIP (). "
";

echo "
Access route: ". $_server[" Http_referer "];

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