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I would like to add a search form to the front page. I've added this to my template.php:

function my_theme_preprocess_page(&$variables){
   $search_box = drupal_render(drupal_get_form('search_form'));
   $variables['search_box'] = $search_box;
}

I've added this to my page.tpl.php:

<?php print $search_box; ?>

After viewing my site I do see the search form but get this error:

Strict warning: Only variables should be passed by reference in denta_quest_preprocess_page() (line 142 of C:\xampp\htdocs\drupal\themes\my_theme\template.php).

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Your probably getting the warning because the function takes its argument by reference and to pass a variable by reference it needs to be defined. You're passing a function call which isn't a variable.

Try the following...

$search_form = drupal_get_form('search_form');
$search_box = drupal_render($search_form);
$variables['search_box'] = $search_box;
  • It didn't work, I was able to see the search form but I'm still getting a warning. – Nick Dec 18 '12 at 21:20

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