Twitter oAuth normalization

twitterNormalization.php

<?php

if ($service == 'twitter') {

    $data = array(
        'id'           => $return['id'],
        'name'         => $return['name'],
        'username'     => $return['screen_name'],
        'verified'     => $return['verified'],
        'profileLink'  => $return['profile_image_url'],
        'firstName'    => false,
        'lastName'     => false,
        'email'        => $return['id'].'@twitter',
        'gender'       => false,
        'locale'       => false,
        'timezone'     => false,
        'avatar'       => false,
        'gravatar'     => false,
        'isSilhouette' => false,
        'missingData'  => array('email')
    );

    if ($data['avatar'] == 'http://a0.twimg.com/sticky/default_profile_images/default_profile_1_normal.png') {
        $data['isSilhouette'] = true;
    }
}