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Posted By

KyleLee on 11/24/07


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drupal


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Drupal Index

Published in: PHP 

This is the whole index file of drupal. The design & structure are very clear. First, like an operation system, drupal has a boot. The param of drupal_bootstrap describes a phase of Drupal to load. the boot load the global configs, initialize cache, initialize db layer, identify and reject banned hosts, initialize session handling and validate and fix input data.

Second, the function menuexecuteactive_handler(path) execute the page callback associated with the current path.

Finally, display the page you want.

Plain TextExpand 
  1. <?php
  2. // $Id: index.php,v 1.93 2007/04/06 13:27:20 dries Exp $
  3.  
  4. /**
  5.  * @file
  6.  * The PHP page that serves all page requests on a Drupal installation.
  7.  *
  8.  * The routines here dispatch control to the appropriate handler, which then
  9.  * prints the appropriate page.
  10.  */
  11.  
  12. require_once './includes/bootstrap.inc';
  13. drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
  14.  
  15. $return = menu_execute_active_handler();
  16.  
  17. // Menu status constants are integers; page content is a string.
  18. if (is_int($return)) {
  19.   switch ($return) {
  20.     case MENU_NOT_FOUND:
  21.       drupal_not_found();
  22.       break;
  23.     case MENU_ACCESS_DENIED:
  24.       drupal_access_denied();
  25.       break;
  26.     case MENU_SITE_OFFLINE:
  27.       drupal_site_offline();
  28.       break;
  29.   }
  30. }
  31. elseif (isset($return)) {
  32.   // Print any value (including an empty string) except NULL or undefined:
  33.   print theme('page', $return);
  34. }
  35.  
  36. drupal_page_footer();
  37. ?>

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