function template_preprocess

Same name and namespace in other branches
  1. 7.x includes/ \template_preprocess()
  2. 9 core/includes/ \template_preprocess()
  3. 8.9.x core/includes/ \template_preprocess()
  4. 10 core/includes/ \template_preprocess()

Adds a default set of helper variables for preprocessors and templates.

This function is called for every theme hook. It is the first in the sequence of preprocessing functions called when preparing variables for a template.

See the Default theme implementations topic for details.

1 call to template_preprocess()
ThemeManager::render in core/lib/Drupal/Core/Theme/ThemeManager.php
Generates themed output.
5 string references to 'template_preprocess'
RegistryTest::testMultipleSubThemes in core/tests/Drupal/KernelTests/Core/Theme/RegistryTest.php
Tests the theme registry with multiple subthemes.
RegistryTest::testSuggestionPreprocessFunctions in core/tests/Drupal/KernelTests/Core/Theme/RegistryTest.php
Tests the theme registry with suggestions.
RegistryTest::testThemeTemplatesRegisteredByModules in core/tests/Drupal/KernelTests/Core/Theme/RegistryTest.php
Tests theme-provided templates that are registered by modules.
user_user_login in core/modules/user/user.module
Implements hook_user_login().
user_user_logout in core/modules/user/user.module
Implements hook_user_logout().


core/includes/, line 1083


function template_preprocess(&$variables, $hook, $info) {
    // Merge in variables that don't depend on hook and don't change during a
    // single page request.
    // Use the advanced drupal_static() pattern, since this is called very often.
    static $drupal_static_fast;
    if (!isset($drupal_static_fast)) {
        $drupal_static_fast['default_variables'] =& drupal_static(__FUNCTION__);
    $default_variables =& $drupal_static_fast['default_variables'];
    if (!isset($default_variables)) {
        $default_variables = _template_preprocess_default_variables();
    $variables += $default_variables;
    // When theming a render element, merge its #attributes into
    // $variables['attributes'].
    if (isset($info['render element'])) {
        $key = $info['render element'];
        if (isset($variables[$key]['#attributes'])) {
            $variables['attributes'] = AttributeHelper::mergeCollections($variables['attributes'], $variables[$key]['#attributes']);

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