Get a user's latest tweet with cURL; no API key needed

tweet.php

<?php

/**
 * Return a user's latest tweet using cURL
 *
 * @param string $username The username for whom you wish to fetch a tweet
 * @return mixed The tweet if it exists, NULL otherwise
 */
function latest_tweet($username) {
    $url = 'http://search.twitter.com/search.json?from='.$username;
    
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
    
    $data = curl_exec($ch);
    curl_close($ch);
    
    $data = json_decode($data);
    return $data->results[0]; // The latest tweet
}

Not working yet due to twitter api changed. can you update that.

Not working due to Twitter REST API v1 is no longer active.