无法使用 Twitter V1.1 API 验证用户身份

Question

我已经通过创建签名实现了一切。我创建了一个函数来收集所需的参数（为了清楚起见，我在此处添加了一些注释）：function collect_parameters(){    global $credentials; // This is an Object with my App's credentials and stuff    $oAuth = get_user_oauth();  // This returns an object with the the personal user OAuth tokens retrieved from the earlier docs.    $encoded_collection = array();    $collection = array(        'status'                 => rawurlencode( $_GET['tweet'] ),        'include_entities'       => 'true',        'oauth_consumer_key'     => $credentials->key,        'oauth_nonce'            => $credentials->nonce, // md5( str_shuffle( uniqid() . mt_rand(0,9999999999) ) )        'oauth_signature_method' => 'HMAC-SHA1',        'oauth_timestamp'        => $credentials->time, // current timestamp        'oauth_token'            => $oAuth->oauth_token,        'oauth_version'          => '1.0',    );    // Percent encode every key and value that will be signed.    foreach( $collection as $key => $value ){        $encoded_collection[rawurlencode($key)] = rawurlencode($value);     }    // Sort the list of parameters alphabetically by encoded key.    ksort( $encoded_collection );    return http_build_query( $encoded_collection );}我使用这个函数来构建签名基字符串function create_signature_base_string( $parameter_string, $url = 'https://api.twitter.com/1.1/statuses/update.json', $method = 'POST' ){    return strtoupper( $method ) .'&'. rawurlencode( $url ) .'&'. rawurlencode( $parameter_string );}我用这个函数来计算签名function calculate_signature( $signature_base_string, $signing_key ){    return base64_encode( hash_hmac('sha1', $signature_base_string, $signing_key, true) );}现在构建 OAuth 标头。这是一个函数，它使用上面的辅助函数（加上其他一些返回所需信息的函数）：function get_oauth_headers(){    global $credentials;    $oAuth = get_user_oauth();        $parameters = collect_parameters();    $signature_base_string = create_signature_base_string( $parameters );    $signing_key = get_signing_key();    $signature = calculate_signature( $signature_base_string, $signing_key );    );