WebHook notifier class

WebHook.php

<?php

class WebHookEvent
{
    private $name = null;
    private $params = array();

    public function setName($event)
    {
        $this->name = $event;
    }

    public function getName()
    {
        return $this->name;
    }

    public function setParams(array $params)
    {
        $this->params = $params;
    }

    public function getParams()
    {
        return $this->params;
    }
}

class WebHookNotifier
{
    private $urls = array();
    private $event = null;

    public function setUrls(array $urls)
    {
        $this->urls = $urls;
    }

    public function setEvent(WebHookEvent $event)
    {
        $this->event = $event;
    }

    public function notify()
    {
        $event = $this->event;

        if(!$event instanceof WebHookEvent) {
            throw new Exception('Event must be set before notification is sent');
        }

        if(!$event->getName()) {
            throw new Exception('Event name must be set before notification is sent');
        }

        if(empty($this->urls)) {
            //throw new Exception('No url were defined');
            return false;
        }

        $params = $event->getParams();
        $params['event'] = $event->getName();

        foreach($this->urls as $url) {
            try {
                $this->call_url($url, $params);
            } catch(Exception $e) {
                error_log($e->getMessage());
            }
        }
    }

    private function call_url($url, array $params)
    {
        $timeout = 10;

        $ch = curl_init();
        $userAgent = 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)';
        curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
        curl_setopt($ch, CURLOPT_FAILONERROR, true);
        curl_setopt($ch, CURLOPT_AUTOREFERER, true);
        curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $params);

        if (ini_get('open_basedir') == '' && ini_get('safe_mode') == 'Off'){
            curl_setopt($ch, CURLOPT_FOLLOWLOCATION, $this->_followlocation);
        }

        $data = curl_exec($ch);
        if($data === false) {
            throw new Exception(curl_error($ch), curl_errno($ch));
        }

        curl_close($ch);
        return $data;
    }

}