<?php

//function to get image with fsockopen
function GetImg($host,$link)
{
	$fp = fsockopen($host, 80, $errno, $errstr, 30);
	if (!$fp) {
		echo "$errstr (error number $errno)	\n";
	} else {
		$out = "GET $link HTTP/1.1\r\n";
		$out .= "Host: $host\r\n";
		$out .= "Connection: Close\r\n\r\n";
		$out .= "Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5\r\n";
		$out .= "Accept-Language: en-us,en;q=0.5\r\n";
		$out .= "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n";
		$out .= "Keep-Alive: 300\r\n";   
		$out .= "\r\n";
		fwrite($fp, $out);
		$contents='';
		while (!feof($fp)) {
		$contents.= fgets($fp, 1024);
		}
		fclose($fp);
		return $contents;
	}
}

//function to get image with CURL
function GetImageFromUrl($link)
{
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_POST, 0);
	curl_setopt($ch,CURLOPT_URL,$link);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	$result=curl_exec($ch);
	curl_close($ch);
	return $result;
} 
//1. Method file_Get contents
//$contents= file_get_contents('http://www.google.com/intl/en_ALL/images/logo.gif');
//2.Method fsockopen
	//$contents=GetImg("www.google.com","/intl/en_ALL/images/logo.gif");
	//$contents=strchr($contents,"\r\n\r\n");//removes headers
	//$contents=ltrim($contents);//remove whitespaces from begin of the string
//3. Method CURL

// ****************
// ** LE PASAMOS COMO PARÁMETROS EN DELPHI URL_IMAGEN Y NOMBRE_FICHERO

$url = $_POST["url_imagen"];
$contents = GetImageFromUrl($url);

$filename = $_POST["nombre_fichero"];
//$filename = '30.jpg';

$savefile = fopen($filename, 'w');
fwrite($savefile, $contents);
fclose($savefile);

?>

$url="http://".$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'];  

$url="http://".$_SERVER['HTTP_HOST']."/".$_SERVER['REQUEST_URI'];