Club Drupal

<?php

/**

 * Tests a theme overriding a suggestion of a base theme hook.

 */

function test_theme_theme_test__suggestion($variables) {

  return 'Theme hook implementor=test_theme_theme_test__suggestion(). Foo=' . $variables['foo'];

}

/**

 * Tests a theme implementing an alter hook.

 *

 * The confusing function name here is due to this being an implementation of

 * the alter hook invoked when the 'theme_test' module calls

 * drupal_alter('theme_test_alter').

 */

function test_theme_theme_test_alter_alter(&$data) {

  $data = 'test_theme_theme_test_alter_alter was invoked';

}