function fb_graph_preprocess_page in Drupal for Facebook 6.3

Same name and namespace in other branches

1. 7.3 fb_graph.module \fb_graph_preprocess_page()

Implements hook_preprocess_page().

Adds our meta tags to the html header.

File

./fb_graph.module, line 199

Open Graph Helpers

Code

function fb_graph_preprocess_page(&$vars) {
  $tags = fb_graph_get_tags(TRUE);
  if (count($tags)) {
    foreach ($tags as $key => $value) {
      if (is_array($value)) {

        // Arrays represent multiple properties for same key.  I.e. og:image
        foreach ($value as $val) {
          $markup = '<meta property="' . check_plain($key) . '" content="' . check_plain($val) . '" />';
          drupal_set_html_head($markup);
        }
      }
      else {

        // $value is a single string.
        $markup = '<meta property="' . check_plain($key) . '" content="' . check_plain($value) . '" />';
        drupal_set_html_head($markup);
      }
    }
    $vars['head'] = drupal_get_html_head();
  }
}