Documentation & API reference
public function QueryInterface::exists
Queries for the existence of a field.
Parameters
$field: Name of a field.
$langcode: Language code (optional).
Return value
\Drupal\Core\Entity\Query\QueryInterface
1 method overrides QueryInterface::exists()
- QueryBase::exists in drupal/
core/ lib/ Drupal/ Core/ Entity/ Query/ QueryBase.php - Implements Drupal\Core\Entity\Query\QueryInterface::exists().
File
- drupal/
core/ lib/ Drupal/ Core/ Entity/ Query/ QueryInterface.php, line 78 - Definition of Drupal\Core\Entity\QueryInterface.
Class
- QueryInterface
- Interface for entity queries.
Namespace
Drupal\Core\Entity\QueryCode
public function exists($field, $langcode = NULL);