PHP - Facebook Video Getter

Facebook.php

<?php

class Facebook{

    /**
     * Video Codec
     * @var string
     */
    public $codec = 'h264';

    /**
     * Video Quality 
     * 
     * @var array
     */
    public $quality = array('sd', 'hd', 'mobile');


    /**
     * Class Constructor
     */
    public function __construct()
    {
        //constructor
    }

    /**
     * Get Video 
     * 
     * @param  string $url
     * @return [type]
     */
    public function get_video($url ="")
    {
 
        $page  = $this->get_remote_content($url);


        $dom  = new DOMDocument("1.0", "utf-8");
     
        libxml_use_internal_errors(true);

        $dom->loadHTML('<?xml version="1.0" encoding="UTF-8"?>' . "\n" . $page);

        $xPath = new DOMXpath($dom);
 
        $video = $xPath->query('//div[@class = "player_container"]/div[@class = "player"]')->item(0);

        if ($video) {
            
            $json = json_decode($this->get_remote_content($video->getAttribute('data-config-url')));

            if (property_exists($json, 'message')) {
                return false;
            }

            $videoObject = null;

            if (property_exists($json->request->files, $this->vimeo_video_codec)) {
                $videoObject = $this->get_quality_video($json->request->files->{$this->codec});
            }

            // pre($videoObject);
           
            if ($videoObject) {
                return $videoObject;
            }
        }

        return false;
    }
    
    /**
     * Get Video Information
     * 
     * @param  string $url
     * @return [type]
     */
    public function get_video_info( $url = "") 
    {

        //get the video
        $video_id = $this->get_video_id($url);

        $graph_url = 'https://graph.facebook.com/';
        
        if(!empty($video_id) ){

            //  Initiate curl
            $ch = curl_init();
            // Disable SSL verification
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
            // Will return the response, if false it print the response
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            // Set the url
            curl_setopt($ch, CURLOPT_URL, $graph_url . $video_id );
            // Execute
            $result=curl_exec($ch);
            // Closing
            curl_close($ch);

            // Will dump a beauty json :3
            $output = json_decode($result); 

            return $output;
            // return $output->format;
 
        }
  
    }

    /**
     * Get vimeo video object
     * 
     * @param stdClass $files object of Vimeo files
     * @return stdClass Video file object
     */
    private function get_quality_video($files)
    {
        $video = null;
        foreach ($this->quality as $quality) {
            if (property_exists($files, $quality)) {
                $video[] = $files->{$quality};
                // break;
            }
        }
        if (!$video) {
            foreach (get_object_vars($files) as $file) {
                $video = $file;
                break;
            }
        }
        return $video;
    }

    /**
     * Get remote content by URL
     * 
     * @param string $url remote page URL
     * @return string result content
     */
    private function get_remote_content($url)
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
        curl_setopt($ch, CURLOPT_TIMEOUT, 20);
        curl_setopt($ch, CURLOPT_HEADER, false);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
        curl_setopt($ch, CURLOPT_MAXREDIRS, 10);
        curl_setopt($ch, CURLOPT_USERAGENT, 'spider');
        $content = curl_exec($ch);
 
        curl_close($ch);

        return $content;
    }
 
    /**
     * Get video id based on URL
     *
     * 
     * @param  string $url
     * @return [type]
     */
    public function get_video_id( $url  = "")
    {
        $v = '';        

        if( !empty($url) ){ 

            $arr      = explode('/',$url); 

            //get the index 3
            $id_arr =  explode('?', $arr[3]);
            //parse the query string
            parse_str($id_arr[1]);

        }

        return $v;
    }
 
}

?>