protected property UpdateBuildIdCommand::$old
Old build id.
Type: string
File
- core/lib/Drupal/Core/Ajax/UpdateBuildIdCommand.php, line 27
Class
- UpdateBuildIdCommand
- AJAX command for updating the value of a hidden form_build_id input element on a form. It requires the form passed in to have keys for both the old build ID in #build_id_old and the new build ID in #build_id.
Namespace
Drupal\Core\AjaxCode
protected $old;
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Ajax!UpdateBuildIdCommand.php/property/UpdateBuildIdCommand::old/8.1.x