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Drupal example source code file (help.api.php)

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

PHP - Drupal tags/keywords

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The help.api.php Drupal example source code

// $Id: help.api.php,v 1.11 2010/10/06 03:43:01 webchick Exp $

 * @file
 * Hooks provided by the Help module.

 * @addtogroup hooks
 * @{

 * Provide online user help.
 * By implementing hook_help(), a module can make documentation available to
 * the user for the module as a whole, or for specific paths.  Help for
 * developers should usually be provided via function header comments in the
 * code, or in special API example files.
 * For a detailed usage example, see page_example.module.
 * @param $path
 *   The router menu path, as defined in hook_menu(), for the help that is
 *   being requested; e.g., 'admin/people' or 'user/register'.  If the router
 *   path includes a wildcard, then this will appear in $path as %, even if it
 *   is a named %autoloader wildcard in the hook_menu() implementation; for
 *   example, node pages would have $path equal to 'node/%' or 'node/%/view'.
 *   To provide a help page for a whole module with a listing on admin/help,
 *   your hook implementation should match a path with a special descriptor
 *   after a "#" sign:
 *     'admin/help#modulename'
 *       The main module help text, displayed on the admin/help/modulename
 *       page and linked to from the admin/help page.
 * @param $arg
 *   An array that corresponds to the return value of the arg() function, for
 *   modules that want to provide help that is specific to certain values
 *   of wildcards in $path. For example, you could provide help for the path
 *   'user/1' by looking for the path 'user/%' and $arg[1] == '1'. This given
 *   array should always be used rather than directly invoking arg(), because
 *   your hook implementation may be called for other purposes besides building
 *   the current page's help. Note that depending on which module is invoking
 *   hook_help, $arg may contain only empty strings. Regardless, $arg[0] to
 *   $arg[11] will always be set.
 * @return
 *   A localized string containing the help text.
function hook_help($path, $arg) {
  switch ($path) {
    // Main module help for the block module
    case 'admin/help#block':
      return '<p>' . t('Blocks are boxes of content rendered into an area, or region, of a web page. The default theme Bartik, for example, implements the regions "Sidebar first", "Sidebar second", "Featured", "Content", "Header", "Footer", etc., and a block may appear in any one of these areas. The <a href="@blocks">blocks administration page</a> provides a drag-and-drop interface for assigning a block to a region, and for controlling the order of blocks within regions.', array('@blocks' => url('admin/structure/block'))) . '</p>';

    // Help for another path in the block module
    case 'admin/structure/block':
      return '<p>' . t('This page provides a drag-and-drop interface for assigning a block to a region, and for controlling the order of blocks within regions. Since not all themes implement the same regions, or display regions in the same way, blocks are positioned on a per-theme basis. Remember that your changes will not be saved until you click the <em>Save blocks</em> button at the bottom of the page.') . '</p>';

 * @} End of "addtogroup hooks".

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