Twillio Connector

twillio.php

<?php

class Twillio
{
    public static $sid = '';
    public static $token = '';
    public static $from = '';
    
    /*
    *   Make outgoing call to specified number
    *
    *   @params string $to
    *   @params string $callbackUrl
    *   @params array $options
    *   @return array
    */
    public static function makeCall($to, $callbackUrl, $options = [])
    {
        $fields = [
            'To' => $to, 
            'From' => static::$from, 
            'Url' => $callbackUrl,
        ];
        
        $fields = array_merge($fields, $options);
        
        return static::makeRequest('Calls', $fields);
    }
    
    /*
    *   Make outgoing call to specified number
    *
    *   @params string $to
    *   @params string $body
    *   @params string $from
    *   @params array $options
    *   @return array
    */
    public static function sendSMS($to, $body, $from = null, $options = [])
    {
        $fields = [
            'To' => $to, 
            'From' => static::$from, 
            'Body' => $body
        ];
        
        $fields = array_merge($fields, $options);

        return static::makeRequest('SMS/Messages', $fields);
    }
    
    public static function makeRequest($path, $fields)
    {
        $auth = static::$sid . ':' . static::$token;
        $uri = 'https://api.twilio.com/2010-04-01/Accounts/' . static::$sid . '/' . $path;

        $fieldsSring = '';
        foreach ($fields as $key => $val) {
            $fieldsString .= '&' . $key . '=' . urlencode($val);
        }

        $res = curl_init();         
        curl_setopt($res, CURLOPT_URL, $uri);
        curl_setopt($res, CURLOPT_POST, count($fields));
        curl_setopt($res, CURLOPT_POSTFIELDS, $fieldsString);
        curl_setopt($res, CURLOPT_USERPWD, $auth);
        curl_setopt($res, CURLOPT_RETURNTRANSFER, true);
         
        $result = curl_exec($res);
        return $result;
    }
}