Wordpress XML-RPC Pingback checker

wordpress-xmlrpc-pingback-checker.php

<?php
if ($argc != 2 or empty($argv[1])) {
    echo "Usage  : $argv[0] {CHECK TARGET}\n";
    echo "Example: $argv[0] http://www.example.com/wp/xmlrpc.php\n";
    exit(1);
} elseif (!preg_match("/^(http|https):\/\//",$argv[1])) {
    echo "Invalid URL\n";
    exit(1);
}

$request = xmlrpc_encode_request('pingback.ping',array('127.0.0.1', str_replace(array('http://','https://'), '', $argv[1])));
$context = stream_context_create(array('http' => array(
    'method' => 'POST',
    'header' => 'Content-Type: text/xml',
    'content' => $request
)));

echo "[Request]\n";
print_r($request);
echo "\n";
echo "[Response]\n";

$file = file_get_contents($argv[1], false, $context);
$response = xmlrpc_decode($file);
if ($response) {
    print_r($response);
} else {
    echo "No response...\n";
}