Example of code for PHPcurl forgery of IP addresses and headers, curlheader_PHP tutorial-php Tutorial

PHPcurl is an example of code for forging IP addresses and header information, curlheader. PHPcurl is a code instance with forged IP addresses and headers. although curlheadercurl is powerful, it can only forge $ _ SERVER [HTTP_X_FORWARDED_FOR]. for most IP address detection programs, PHP curl is used to forge IP addresses and header information code instances, curlheader

Although curl is powerful, it can only forge $ _ SERVER ["HTTP_X_FORWARDED_FOR"]. for most IP address detection programs, it is difficult to forge $ _ SERVER ["REMOTE_ADDR:

First, the client. php code

The code is as follows:
$ Headers ['client-IP'] = '192. 103.229.40 ';
$ Headers ['X-FORWARDED-FOR '] = '2017. 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); // Construct an IP address
Curl_setopt ($ ch, CURLOPT_REFERER, "http://www.163.com/"); // Construct a path
Curl_setopt ($ ch, CURLOPT_HEADER, 1 );

Curl_exec ($ ch );
Curl_close ($ ch );
$ Out = ob_get_contents ();
Ob_clean ();

Echo $ out;

Then there is 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 be obtained! ";
Return $ cip;
}
Echo"
Access IP: ". GetIP ()."
";
Echo"
Access path: ". $ _ SERVER [" HTTP_REFERER "];

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