Twitter APIで取得したTweets Objectをちょっと便利にするクラス。 Tweets (https://dev.twitter.com/docs/platform-objects/tweets)

Tweets.php

<?php
Class Tweets extends ArrayObject {

	public function __construct( Array $tweets ) {

		foreach($tweets as $key => $tweet) {

			$this->offsetSet($key, $this->createTweet($tweet));
		}
	}

	public function createTweet($tweet) {
		return new Tweet($tweet);
	}
}

class Tweet {

	private $data;
	public function __construct($tweet) {
		$this->data = $tweet;
	}

	public function __get($name) {
		return $this->get($name);
	}

	public function get( $name ) {
		$data = $this->data->$name;
		if( $name == "text" and is_string($data) ) {
			$data = $this->expand_url($data);
			$data = $this->link_repry($data);
			return $data;
		}
		return $this->data->$name;
	}

	private function link_repry( $text ) {
		$user = $this->get("in_reply_to_screen_name");
		return str_replace("@".$user, "<a href='https://twitter.com/".$user."'>@".$user."</a>", $text );
	}

	private function expand_url( $text ) {
		$entities = $this->get("entities");

		$text = $this->replace_url($text, $entities->urls);
		$text = $this->replace_url($text, $entities->media);

		return $text;
	}

	private function replace_url($subject, $replaces) {
		foreach ($replaces as $key => $url) {
			$subject = str_replace($url->url, "<a href='".$url->url."'>".$url->display_url."</a>", $subject );
		}
		return $subject;
	}
}

$tweets = new Tweets(json_decode($data));

URLを書き換えたりします。