Ravelry API signing example php

gistfile1.txt

<?php
// Shh keep this secret:
$secret = '1111111111111111111111111111111111111111';

$data = array();

$data['access_key'] = '00000000000000000000';
$data['query'] = 'yarn me'; // for example
$data['shop_type_id'] = '1'; // for example
$data['timestamp'] = date('c'); // ISO8601 format

$string = 'http://api.ravelry.com' . '/shops/search.json?' . http_build_query($data);
$signature = base64_encode(hash_hmac('sha256', $string, $secret));

$data['signature'] = $signature;

$final = http_build_query($data);
$final = 'http://api.ravelry.com' . '/shops/search.json?' . $final;
echo '<pre>' . $final . '</pre>';
?>