public static function get($post_id = NULL)
 {
     $URI_ = array();
     if ($post_id != NULL) {
         $meta_ = get_post_meta($post_id, '_thumbnail_id');
         if (@count($meta_)) {
             foreach ($meta_ as $attachment_id) {
                 $post_ = get_post($attachment_id);
                 if (FeedValidator::isValidMediaURL($post_->guid, 'image')) {
                     array_push($URI_, array('name' => $post_->post_title, 'uri' => $post_->guid));
                 }
             }
         }
         $images_ =& get_children(array('post_parent' => $post_id, 'post_type' => 'attachment', 'post_mime_type' => 'image'));
         if (!empty($images_)) {
             foreach ($images_ as $attachment_id => $attachment) {
                 array_push($URI_, array('uri' => wp_get_attachment_url($attachment_id), 'name' => wp_get_attachment_image($attachment_id, 'thumbnail')));
             }
         }
     }
     foreach ($URI_ as $img_) {
         $duplicate = 0;
         foreach ($URI_ as $i => $img_control_) {
             if ($img_['uri'] == $img_control_['uri']) {
                 $duplicate++;
                 if ($duplicate > 1) {
                     $URI_ = array_slice($URI_, $i, 1);
                 }
             }
         }
     }
     //dd( $URI_ );
     return $URI_;
 }
    /**
     * 	Extract images URL from a blog HTML content.
     *
     * @access	public
     * @param	String	HTML content that can content fom <img /> XHTML element
     * @return 	Array	Return an array of the images URL founds.
     */
    public static function getMediaURLfromHTML($text = NULL)
    {
        $media_ = array();
        if (strlen(trim($text)) > 0) {
            $tt = preg_match_all('/<(source|iframe|embed|param|img)[^>]+src=[\'"]([^\'"]+)[\'"].*>/i', str_replace('><', '>
<', FeedValidator::removeBreaklines($text, '
')), $matches);
            if ($tt > 0 && count($matches[2]) > 0) {
                foreach ($matches[2] as $i => $value) {
                    $sb1 = array();
                    $sb2 = array();
                    $sb3 = array();
                    $sb4 = array();
                    if (FeedValidator::isValidURL($value)) {
                        $simple_tag = str_replace("'", "\"", strtolower(stripcslashes($matches[0][$i])));
                        $sb1 = explode('title="', $simple_tag);
                        if (count($sb1) > 1) {
                            $sb3 = explode('"', $sb1[1]);
                        }
                        $sb2 = explode('alt="', $simple_tag);
                        if (count($sb2) > 1) {
                            $sb4 = explode('"', $sb2[1]);
                        }
                        $media_type = FeedValidator::getMediaType($value);
                        array_push($media_, array('uri' => $value, 'type' => $media_type, 'name' => isset($sb3[0]) ? $sb3[0] : (isset($sb4[0]) ? $sb4[0] : $media_type . " - " . $i)));
                    }
                }
            }
            // Strip HTML content and analyzed individual world to find URL in the text. (CF: MediaWiki content).
            $text_split = explode(' ', FeedValidator::getOnlyText($text, self::CHARSET));
            if (count($text_split) > 0) {
                foreach ($text_split as $value) {
                    foreach (array('image', 'sound', 'video') as $media_type) {
                        if (FeedValidator::isValidURL($value)) {
                            if (FeedValidator::isValidMediaURL($value, $media_type)) {
                                if (!in_array($value, $media_)) {
                                    array_push($media_, array('uri' => $value, 'type' => $media_type, 'name' => $media_type));
                                }
                            }
                        }
                    }
                }
            }
        }
        return $media_;
    }