Question

I create variables in my preprocess page template

function hook_theme_preprocess_page(&$vars) {
$vars['myvariable'] = "some text here";
}

Now I need to use these in my node template, I can see it when I dsm($node) but when I try

print $myvariable;

I get nothing.

Answer 1

mytheme_preprocess_page will preprocess the page template (i.e. page.tpl.php), not the node template (i.e. node.tpl.php). If you want to add vars to the node template you need to process that particular template with hook_preprocess_node():

function mytheme_preprocess_node(&$vars) {
  $node = $vars['node']; // Just in case you need it

  if ($node->type == 'news_page') {
    $vars['myvariable'] = "some text here";
  }
}