MAINTENANCE_MODE

1. drupal
   1. 6 update.php
   2. 6 install.php
   3. 7 update.php
   4. 7 install.php
   5. 7 authorize.php
   6. 8 core/update.php
   7. 8 core/install.php
   8. 8 core/authorize.php

Global flag to identify update.php run, and so avoid various unwanted operations, such as hook_init() and hook_exit() invokes, css/js preprocessing and translation, and solve some theming issues. This flag is checked on several places in Drupal code (not just update.php).

File

./update.php, line 21

Administrative page for handling updates from one Drupal version to another.

Code

define('MAINTENANCE_MODE', 'update')