Get and cache twitter follower count in php and wordpress

social-count.php

<?php
function update_facebook_count() {
    $name = 'giantsydney';
    $optionName = $name . '_facebook_followers';
    $url = 'https://graph.facebook.com/'.$name;
    $fb = @json_decode(file_get_contents($url));
    $count = number_format($fb->likes);
    add_option($optionName);
    update_option($optionName, $count);
}
function fb_count($name) {
    $optionName = $name . '_facebook_followers';
    echo get_option($optionName);
}

function update_twitter_count() {
    $name = 'giantsydney';
    $url = 'https://twitter.com/users/show/'. $name;
    $optionName = $name . '_twitter_followers';
    $response = file_get_contents ( $url );
    $t_profile = new SimpleXMLElement ( $response );
    $count = $t_profile->followers_count;
    $count = (float) $count;
    $count = number_format($count);
    add_option($optionName);
    update_option($optionName, $count);
}
function twitter_count($name) {
    $optionName = $name . '_twitter_followers';
    echo get_option($optionName);
}

function update_social_count(){
    update_facebook_count();
    update_twitter_count();
}
if (!wp_next_scheduled('tw_update_hourly')) {
    wp_schedule_event(time(), 'hourly', 'tw_update_hourly');
}
add_action('tw_update_hourly', 'update_social_count');

?>