public function OpenGraphMeta::harvest_images_from_node in Open Graph meta tags 7

Same name and namespace in other branches

1. 6 opengraph_meta.common.inc \OpenGraphMeta::harvest_images_from_node()

Harvest all images from the given node.

Return value

array(array('title' => , 'alt' => , 'url' =>))

1 call to OpenGraphMeta::harvest_images_from_node()

OpenGraphMeta::get_og_tag_defaults in ./opengraph_meta.common.inc

Get default values for all meta tags (including optional ones).

File

./opengraph_meta.common.inc, line 294

Class

OpenGraphMeta

Code

public function harvest_images_from_node($node) {

  // extract image fields
  $ret = array();
  OpenGraphMetaDrupalLayer::extract_image_fields((array) $node, $ret);

  // extract all images from body content
  $body = OpenGraphMetaDrupalLayer::get_node_body($node);
  if (!empty($body)) {
    libxml_use_internal_errors(TRUE);

    // turn off libxml errors for now
    $doc = new DOMDocument();
    $doc
      ->loadHTML($body);
    $list = $doc
      ->getElementsByTagName('img');
    for ($i = 0; $list->length > $i; ++$i) {
      $item = $list
        ->item($i);
      if ($item
        ->hasAttribute('src')) {
        $url = $item
          ->getAttribute('src');
        if (!empty($url)) {
          $ret[$url] = array(
            'title' => $url,
            'alt' => $url,
            'url' => $url,
          );
        }
      }
    }
    libxml_use_internal_errors(FALSE);

    // turn libxml errors back on
  }
  return $ret;
}