PHP - RecursiveArrayIterator

php_recursive_array_iterator.php

<?php
/**
 * Class Message
 */
class Message
{

    public $title;
    public $body;
    public $attachments = array();

    public function addAttachment($attachment)
    {

        $this->attachments[] = $attachment;
    }
}

/**
 * Class MessageReader
 */
class MessageReader extends RecursiveArrayIterator
{

}


$message = new Message();
$message->title = "Take a look to my garden!";
$message->body = "Take a look and give me your feedback about it! It's amazing! ;)";
$message->addAttachment('pictureOne.png');
$message->addAttachment('pictureTwo.png');
$message->addAttachment('pictureThree.png');

$client = new MessageReader($message);
foreach ($client as $attribute => $value) {
    if ($client->hasChildren()) {
        $output = 'Messages has attachments:';
        foreach ($client->getChildren() as $child) {
            $output .= ' '.$child;
        }
        echo $output;
    } else {
        echo '<h4>'.$attribute.'</h4>';
        echo '<p>'.$value.'</p>';
    }
}
// output
/*
    title

    Take a look to my garden!

    body

    Take a look and give me your feedback about it! It's amazing! ;)

    Messages has attachments: pictureOne.png pictureTwo.png pictureThree.png
*/