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Drupal example source code file (help.module)

This example Drupal source code file (help.module) is included in the DevDaily.com "Drupal Source Code Warehouse" project. The intent of this project is to help you "Learn Drupal by Example".

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The help.module Drupal example source code

// $Id: help.module,v 1.99 2010/10/04 14:54:10 webchick Exp $

 * @file
 * Manages displaying online help.

 * Implements hook_menu().
function help_menu() {
  $items['admin/help'] = array(
    'title' => 'Help',
    'description' => 'Reference for usage, configuration, and modules.',
    'page callback' => 'help_main',
    'access arguments' => array('access administration pages'),
    'weight' => 9,
    'file' => 'help.admin.inc',

  foreach (module_implements('help', TRUE) as $module) {
    $items['admin/help/' . $module] = array(
      'title' => $module,
      'page callback' => 'help_page',
      'page arguments' => array(2),
      'access arguments' => array('access administration pages'),
      'file' => 'help.admin.inc',

  return $items;

 * Implements hook_help().
function help_help($path, $arg) {
  switch ($path) {
    case 'admin/help':
      $output = '<p>' . t('Follow these steps to set up and start using your website:') . '</p>';
      $output .= '<ol>';
      $output .= '<li>' . t('<strong>Configure your website</strong> Once logged in, visit the <a href="@admin">administration section</a>, where you can <a href="@config">customize and configure</a> all aspects of your website.', array('@admin' => url('admin'), '@config' => url('admin/config'))) . '</li>';
      $output .= '<li>' . t('<strong>Enable additional functionality</strong> Next, visit the <a href="@modules">module list</a> and enable features which suit your specific needs. You can find additional modules in the <a href="@download_modules">Drupal modules download section</a>.', array('@modules' => url('admin/modules'), '@download_modules' => 'http://drupal.org/project/modules')) . '</li>';
      $output .= '<li>' . t('<strong>Customize your website design</strong> To change the "look and feel" of your website, visit the <a href="@themes">themes section</a>. You may choose from one of the included themes or download additional themes from the <a href="@download_themes">Drupal themes download section</a>.', array('@themes' => url('admin/appearance'), '@download_themes' => 'http://drupal.org/project/themes')) . '</li>';
      $output .= '<li>' . t('<strong>Start posting content</strong> Finally, you can <a href="@content">add new content</a> for your website.', array('@content' => url('node/add'))) . '</li>';
      $output .= '</ol>';
      $output .= '<p>' . t('For more information, refer to the specific topics listed in the next section or to the <a href="@handbook">online Drupal handbooks</a>. You may also post at the <a href="@forum">Drupal forum</a> or view the wide range of <a href="@support">other support options</a> available.', array('@help' => url('admin/help'), '@handbook' => 'http://drupal.org/handbooks', '@forum' => 'http://drupal.org/forum', '@support' => 'http://drupal.org/support')) . '</p>';
      return $output;
    case 'admin/help#help':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('The Help module provides <a href="@help-page">Help reference pages</a> and context-sensitive advice to guide you through the use and configuration of modules. It is a starting point for the online <a href="@handbook">Drupal handbooks</a>. The handbooks contain more extensive and up-to-date information, are annotated with user-contributed comments, and serve as the definitive reference point for all Drupal documentation. For more information, see the online handbook entry for the <a href="@help">Help module</a>.', array('@help' => 'http://drupal.org/handbook/modules/help/', '@handbook' => 'http://drupal.org/handbook', '@help-page' => url('admin/help'))) . '</p>';
      $output .= '<h3>' . t('Uses') . '</h3>';
      $output .= '<dl>';
      $output .= '<dt>' . t('Providing a help reference') . '</dt>';
      $output .= '<dd>' . t('The Help module displays explanations for using each module listed on the main <a href="@help">Help reference page</a>.', array('@help' => url('admin/help'))) . '</dd>';
      $output .= '<dt>' . t('Providing context-sensitive help') . '</dt>';
      $output .= '<dd>' . t('The Help module displays context-sensitive advice and explanations on various pages.') . '</dd>';
      $output .= '</dl>';
      return $output;

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