Printing a node field value in html.tpl.php template - Drupal 7

To print a value from a node field in your html.tpl.php template, add this code to your themes template.php file.

You will need to replace 'THEMENAME' with the machine name of your theme, and 'FIELD_NAME' with the machine name of your field (format usually field_my_field_name).

function THEMENAME_preprocess_html(&$vars) {
  $node = menu_get_object();
  if ($node && isset($node->nid)) {
    $node = node_load($node->nid);
    node_build_content($node);
    $vars['FIELD_NAME'] = render($node->content['FIELD_NAME']);
  }
}

To print out your field value in theme html.tpl.php template simply use the below:

<?php print $FIELD_NAME ?>

Another example

Here is an example with more realistic replacements:

function custom_preprocess_html(&$vars) {
  $node = menu_get_object();
  if ($node && isset($node->nid)) {
    $node = node_load($node->nid);
    node_build_content($node);
	$vars['title'] = check_plain($node->title);
    $vars['field_tags'] = render($node->content['field_tags']);
  }
}

Incidentally you should include some checks to see if the values are actually set otherwise you will get an error on pages where they aren't, eg:

<?php if ( isset($title) && isset($field_tags) ){
  print '<h2>' . $title .'</h2>' . $field_tags; 
​}
?>