public function ArrayElement::isNullable
public ArrayElement::isNullable()
Determines if this element allows NULL as a value.
Return value
bool TRUE if NULL is a valid value, FALSE otherwise.
File
- core/lib/Drupal/Core/Config/Schema/ArrayElement.php, line 160
Class
- ArrayElement
- Defines a generic configuration element that contains multiple properties.
Namespace
Drupal\Core\Config\SchemaCode
public function isNullable() { return isset($this->definition['nullable']) && $this->definition['nullable'] == TRUE; }
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Config!Schema!ArrayElement.php/function/ArrayElement::isNullable/8.1.x