php script to proxy a feed from feedblitz including stylesheet (for browsers like chrome)

feed.php

<?php
 
require('proxy.php');
 
// feed delivery service
$response = proxy_request('feeds.feedblitz.com', '/example-blog');
 
// rewrite stylesheet
$original_style = "feeds.feedblitz.com/feedblitz_rss.xslt";
$fake_style = "example.com/rss.xslt";
$rewritten = str_replace($original_style, $fake_style, $response[content]);
 
// output
forward_headers($response['header']);
echo $rewritten;
 
?>

proxy.php

<?php
 
function proxy_request($host, $path) {
    $remote = fsockopen($host, 80, $errno, $errstr, 30); // open socket port 80
    if ($remote){
        fputs($remote, "GET $path HTTP/1.1\r\n");
        fputs($remote, "Host: $host\r\n");
        fputs($remote, "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n"); 
        $requestHeaders = apache_request_headers();
        while ((list($header, $value) = each($requestHeaders))) {
            if ($header !== "Connection" && $header !== "Host" && $header !== "Content-length") {
                fputs($remote, "$header: $value\r\n");
            }
        }
        fputs($remote, "Connection: close\r\n\r\n");
        $result = ''; 
        while (!feof($remote)) { $result .= fgets($remote, 128); }
        fclose($remote);
        $result = explode("\r\n\r\n", $result, 2);
        return array('header' => isset($result[0]) ? $result[0] : '',
                     'content' => isset($result[1]) ? $result[1] : '');
    } else { 
        return array('error' => "$errstr ($errno)");
    }
}
 
function forward_headers($headers) {
    foreach(explode("\r\n", $headers) as $headerLine) {
        header($headerLine);
    }
}
 
?>