Fix bilibili on linux

bilibili.php

<?php
error_reporting(E_ALL);

if (!($_SERVER['HTTP_HOST'] === "interface.bilibili.com")) {
    return;
}

# curl init
$request_uri = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
$ch = curl_init($request_uri);

# Copy request headers
$headers = array();
foreach($_SERVER as $key => $value) {
    if (strcasecmp(substr($key, 0, 4), 'HTTP') == 0) {
        $key = str_replace("_", "-", substr($key, 5));
        $headers[] = $key . ': ' . $value;
    }
}
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

# Copy response headers
function headerfunction($ch, $str) {
    if (strpos($str, 'Content-Length') === FALSE &&
        strpos($str, 'Transfer-Encoding') === FALSE) {
        header($str);
    }
    return strlen($str);
}
curl_setopt($ch, CURLOPT_HEADERFUNCTION, 'headerfunction'); 

# curl execute
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$ret = curl_exec($ch);

# Modify response
$ret = str_replace('<from><![CDATA[youku]]></from>', '<from><![CDATA[-youku]]></from>', $ret);
$ret = str_replace('<stream><![CDATA[letv]]></stream>', '<stream><![CDATA[-letv]]></stream>', $ret);

echo $ret;