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function _drupal_flush_css_js in Drupal 9

Same name and namespace in other branches
  1. 8 core/includes/common.inc \_drupal_flush_css_js()
  2. 6 includes/common.inc \_drupal_flush_css_js()
  3. 7 includes/common.inc \_drupal_flush_css_js()

Changes the dummy query string added to all CSS and JavaScript files.

Changing the dummy query string appended to CSS and JavaScript files forces all browsers to reload fresh files.

3 calls to _drupal_flush_css_js()
DbUpdateController::info in core/modules/system/src/Controller/DbUpdateController.php
Returns the info database update page.
drupal_flush_all_caches in core/includes/common.inc
Rebuilds the container, flushes all persistent caches, resets all variables, and rebuilds all data structures.
system_install in core/modules/system/system.install
Implements hook_install().

File

core/includes/common.inc, line 596
Common functions that many Drupal modules will need to reference.

Code

function _drupal_flush_css_js() {

  // The timestamp is converted to base 36 in order to make it more compact.
  Drupal::state()
    ->set('system.css_js_query_string', base_convert(REQUEST_TIME, 10, 36));
}