Gets user timeline feed from Twitter using API 1.1 and OAuth. Based on codes from http://www.webdevdoor.com/javascript-ajax/custom-twitter-feed-integration-jquery/

twitter-feed.js

/**
 * Get Twitter Feed
 * Based on codes from http://www.webdevdoor.com/javascript-ajax/custom-twitter-feed-integration-jquery/
 * Author: Charlie Chao
 */

$(function() {
	var twitterFeed = (function() {
		var options = {
			user: 'twitter',		// Twitter screen name
			count: 2,			// tweets to display
			container: '.twitter-feeds'	// DOM container to display tweets
		};
		var populateFeed = function() {
			$.getJSON('twitter/' + options.user + '-tweets.txt?' + Math.random(), getFeedData);
		},
		getFeedData = function(feeds) {
			var i,
				feedCount = (feeds.length <= options.count) ? feeds.length : options.count,
				feedHTML = '';
			for (i = 0; i < feedCount; i++) {
				// TODO: organize feed DOM
				feedHTML += '<div class="twitter-box">'
					+ '<span class="twitter-time">' + relativeTime(feeds[i].created_at).toUpperCase() + '</span><br>'
					+ '<p>' + addLinks(feeds[i].text) + '</p>'
					+ '</div>';
			}
			$(options.container).html(feedHTML);
		},
		addLinks = function(data) {
			// add link to all http:// links within tweets
			data = data.replace(/((https?|s?ftp|ssh)\:\/\/[^"\s\<\>]*[^.,;'">\:\s\<\>\)\]\!])/g, function(url) {
				return '<a href="' + url + '" >' + url + '</a>';
			});
			// add link to @usernames used within tweets
			data = data.replace(/\B@([_a-z0-9]+)/ig, function(reply) {
				return '<a href="http://twitter.com/' + reply.substring(1) + '" style="font-weight:lighter;" >' + reply.charAt(0) + reply.substring(1) + '</a>';
			});
			return data;
		},
		relativeTime = function(time) {
			var values = time.split(" ");
			time = values[1] + " " + values[2] + ", " + values[5] + " " + values[3];
			var parsed_date = Date.parse(time);
			var relative_to = (arguments.length > 1) ? arguments[1] : new Date();
			var delta = parseInt((relative_to.getTime() - parsed_date) / 1000, 10);
			var shortdate = time.substr(4, 2) + " " + time.substr(0, 3);
			delta = delta + (relative_to.getTimezoneOffset() * 60);
			if ( delta < 60 ) {
				return 'a minute ago';
			} else if( delta < 120 ) {
				return 'a minute ago';
			} else if( delta < (60 * 60) ) {
				return (parseInt(delta / 60), 10).toString() + ' minutes ago';
			} else if( delta < (120 * 60) ) {
				return 'an hour ago';
			} else if( delta < (24 * 60 * 60) ) {
				return (parseInt(delta / 3600), 10).toString() + ' hours ago';
			} else if( delta < (48 * 60 * 60) ) {
				//return '1 day';
				return shortdate;
			} else {
				return shortdate;
			}
		}
		return {
			populateFeed: populateFeed
		};
	})();

	twitterFeed.populateFeed();	

})

twitter-feed.php

<?php

/**
 * Get Twitter Feed
 * Authenticates and returns the latest tweets from the user timeline.
 * Schedule this task to refresh cache.
 * 
 * Based on codes from http://www.webdevdoor.com/php/authenticating-twitter-feed-timeline-oauth/
 * Author: Charlie Chao
 */

session_start();
require_once('twitteroauth.php'); 

// API keys
$consumerKey = "1234";
$consumerSecret = "1234";
$accessToken = "1234";
$accessTokenSecret = "1234";

// https://dev.twitter.com/docs/api/1.1/get/statuses/user_timeline
$user = "twitter";
$count = 10;
$excludeReplies = true;
$includeRetweets = true;
$contributorDetails = false;
$trimUser = false;

// get tweets
$connection = new TwitterOAuth($consumerKey, $consumerSecret, $accessToken, $accessTokenSecret);
$tweets = $connection->get( "https://api.twitter.com/1.1/statuses/user_timeline.json?screen_name=" . $user . "&count=" . $count . "&excludeReplies=" . $excludeReplies . "&include_rts=" . $includeRetweets . "&contributor_details=" . $contributorDetails . "&trim_user=" . $trimUser);
 
// echo json_encode($tweets);

// write tweets to cache
$file = $user . "-tweets.txt";
$fh = fopen($file, 'w') or die("Cannot open file.");
fwrite($fh, json_encode($tweets));
fclose($fh);
if (file_exists($file)) {
	echo $file . " successfully written (" . round(filesize($file) / 1024) . "KB)";
}