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I define variables in template.php file preprocess_page but it come undefined in tpl.php files. What can be a problem? Here is code

template.php file

$user_profile = profile2_load_by_user($uid, 'user_profile');
$vars['user_profile'] = $user_profile;

tpl.php file

print_r($user_profile);
  • Where is $uid coming from? based on the code you have provided, $uid is undefined. – No Sssweat Oct 10 '17 at 10:57
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    Friend that comes from here {global $user; $uid = user_load($user->uid);} – Alen Simonyan Oct 10 '17 at 11:12
  • Are you sure that you are accessing the variable in the correct tpl.php file?Check the tpl.php name and make sure that is correct – Suresh R Oct 10 '17 at 12:14
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Firstly, check to see that profile2_load_by_user is a function available via a .module file and not something you will need to load via module_load_include() - which will load other files, such as .inc files.

Second, check the argument list for the preprocess hook. Did you define it as &$variables and mistakenly assign it to $vars which would mean nothing in this context? Did you forget to pass by reference via & which makes the array modifiable?

Third, if you just added this code, clear your site caches so the changes are picked up.

Fourth, the function name isn't preprocess_page. It should be MYTHEME_preprocess_page.

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Solution is write not one preprocess_page but, many preprocesses depend on page... Say you have user_page page, preprocess should be theme_name_preprocess_user_page or use ['theme_hook_suggestion'][] = 'tpl.php - name';

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