Small Mashup of Ifbyphone and api.wine.com

WineMashup.php

<?php
/**
 *
 * A small mash-up of Ifbyphone and api.wine.com
 *
 * Returns a brief description of a wine label that is
 * sent via SMS to an Ifbyphone number.  
 * 
 * Usage:
 *
 *  $test = new Wine(9524577652, 2122569386, 'mondavi');
 *  $test->execMessage();
 *
 */
class Wine
{
    const WINE_KEY = '';
    const IBP_KEY  = '';
    
    const IBP_BASE = 'https://secure.ifbyphone.com/ibp_api.php?';
    const WINE_BASE = 'http://services.wine.com/api/beta/service.svc/xml/catalog?';
    const GOOGLE_BASE = 'https://www.googleapis.com/urlshortener/v1/url';
    
    protected $_to;
    protected $_from;
    protected $_message;
    
    public function __construct($to, $from, $message)
    {   
        $this->_to = $to;
        $this->_from = $from;
        $this->_message = urlencode($message);
    }
    
    /**
     *
     * Retrieve data about the wine label provided in the SMS message
     */
    public function getData()
    {   
        $options = array(
            'search' => $this->_message, 
            'size'   => 1, 
            'apikey' => self::WINE_KEY
        );
        
        $query = $this->setQuery($options);

        $url = self::WINE_BASE . $query;
        
        $contents = file_get_contents($url);
        $content_obj = simplexml_load_string($contents);
        
        foreach($content_obj->Products->List->Product as $product) {
        
            $data .= $product->Name . PHP_EOL;
            $data .= $this->shortenUrl($product->Url) . PHP_EOL;
            $data .= "Rating: " .$product->Ratings->HighestScore ." out of 100" . PHP_EOL;
            $data .= "Retail price: $".$product->PriceRetail;
            
            $return_data = urldecode($data);
        }
        return $return_data;
    }
    
    /** 
     *
     * Shorten the URL to return in the text message
     * 
     * @param string $data
     */
    public function shortenUrl($data)
    {
        $datastring = (string)$data;
    
        $url = self::GOOGLE_BASE;
        $header  = 'Content-Type: application/json';
        $params = "{'longUrl': '$datastring'}";
        $result = json_decode($this->_sendResponse($url, $header, $params));
        return ($result->{'id'});
    }
    
    /**
     *
     * Create a query for an HTTP request to either Ifbyphone or api.wine.com
     * given an array of key value pairs
     *
     * @param array $options
     */
    public function setQuery(array $options)
    {
        foreach ($options as $param => $value) {
            $array[$param] = $value;
        }
        
        $query = http_build_query($array);
        
        return $query;
    }
    
    /**
     *
     * Request information 
     *
     * @param string $url
     * @param string $header
     * @param string $params
     */
    protected function _sendResponse($url, $header = null, $params = null){
        $ch=curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array($header));
        curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
        $result=curl_exec($ch);
        curl_close($ch);
        
        return $result;
    }
    
    /**
     *
     * Send text message with information
     */
    public function textMessage()
    {
        $options = array(
            'api_key' => self::IBP_KEY, 
            'action'  => 'sms.send_message', 
            'to'      => $this->_to, 
            'from'    => $this->_from, 
            'message' => $this->getData()
        );
        
        $query = $this->setQuery($options);
                                       
        $url = self::IBP_BASE . $query;

        return $this->_sendResponse($url);
    }
    
    /**
     *
     * Wrapper for _sendMessage method
     */
    public function execMessage(){
        $this->textMessage();
    } 
}