twitter-list-oauth.php

<?php 
function getTweetslist($owner_screen_name, $slug) {
    $oauth_access_token         = "***";
    $oauth_access_token_secret  = "***";
    $consumer_key               = "***";
    $consumer_secret            = "***";
    
    // https://api.twitter.com/1.1/lists/statuses.json?slug=teams&owner_screen_name=MLS&count=1

    // create request
        $request = array(
            'slug'                  => $slug,
            'owner_screen_name'     => $owner_screen_name,
            'count'                 => 7
        );

    $oauth = array(
        'oauth_consumer_key'        => $consumer_key,
        'oauth_nonce'               => time(),
        'oauth_signature_method'    => 'HMAC-SHA1',
        'oauth_token'               => $oauth_access_token,
        'oauth_timestamp'           => time(),
        'oauth_version'             => '1.0'
    );

    // merge request and oauth to one array
        $oauth = array_merge($oauth, $request);
        
        $base_info                  = buildBaseString("https://api.twitter.com/1.1/lists/statuses.json", 'GET', $oauth);
        $composite_key              = rawurlencode($consumer_secret) . '&' . rawurlencode($oauth_access_token_secret);
        $oauth_signature            = base64_encode(hash_hmac('sha1', $base_info, $composite_key, true));
        $oauth['oauth_signature']   = $oauth_signature;

    // make request
        $header = array(buildAuthorizationHeader($oauth), 'Expect:');
        $options = array( CURLOPT_HTTPHEADER => $header,
                          CURLOPT_HEADER => false,
                          CURLOPT_URL => "https://api.twitter.com/1.1/lists/statuses.json?". http_build_query($request),
                          CURLOPT_RETURNTRANSFER => true,
                          CURLOPT_SSL_VERIFYPEER => false);

        $feed = curl_init();
        curl_setopt_array($feed, $options);
        $json = curl_exec($feed);
        curl_close($feed);

    return json_decode($json, true);
}
?>