<?php
$sig_base_str = 'POST&https%3A%2F%2Fapi.twitter.com%2F1%2Fstatuses%2Fupdate.json&include_entities%3Dtrue%26oauth_consumer_key%3Dxvz1evFS4wEEPTGEFPHBog%26oauth_nonce%3DkYjzVBB8Y0ZFabxSWbWovY3uYSQ2pTgmZeNu2VS4cg%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1318622958%26oauth_token%3D370773112-GmHxMAgYyLbNEtIKZeRNFsMKPR9EyMZeS9weJAEb%26oauth_version%3D1.0%26status%3DHello%2520Ladies%2520%252B%2520Gentlemen%252C%2520a%2520signed%2520OAuth%2520request%2521';
$sig_key = 'kAcSOqF21Fu85e7zjz7ZN2U4ZRhfV3WpwPAoE3Z7kBw&LswwdoUaIvS8ltyTt5jkRh4J50vUPVVHtR2YPi5kE';
$sha = hash_hmac('sha1', $sig_base_str, $sig_key);
echo base64_encode($sha);
?>

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