Twitterのツイートを表示する-RSS編

get_tweet_lines.php

<?php
function get_tweet_lines($userName){
    date_default_timezone_set('Asia/Tokyo');
    $rssUrl = 'http://twitter.com/statuses/user_timeline/'.$userName.'.rss';
    
    // get cache
    if ( ($response = get_transient(md5($rssUrl))) === false ) {
        $response = wp_remote_get($rssUrl);
        if( !is_wp_error( $response ) && $response["response"]["code"] === 200 ) {
            set_transient(md5($rssUrl), $response, 60 * 60 );	// 60sec * 60min = 1hour
        } else {
            $response = false;
        }
    }

    if( $response && !is_wp_error($response) ) {
        $rssData = simplexml_load_string($response["body"]);
        echo '<ul id="vertical-ticker" class="tweet-widget">';
        foreach($rssData->channel->item as $item){
            $pubDateJP = date("Y/m/d H:i:s",strtotime($item->pubDate));
            echo "<li>".str_replace("\n",'',$item->description)."<p><a href='".$item->link."'>".$pubDateJP."</a>&nbsp;のつぶやき。</p></li>\n";
        }
        echo '</ul>'; 
    } else {
        // Handle error here.
    }
}