public function Element::__isset in Express 8

Magic isset method.

This is only for child elements, not properties.

Parameters

string $name: The name of the child element to check.

Return value

bool TRUE or FALSE

Throws

\InvalidArgumentException Throws this error when the name is a property (key starting with #).

Overrides ArrayObject::__isset

File

themes/contrib/bootstrap/src/Utility/Element.php, line 115

Contains \Drupal\bootstrap\Utility\Element.

Class

Element

Provides helper methods for Drupal render elements.

Namespace

Drupal\bootstrap\Utility

Code

public function __isset($name) {
  if (\Drupal\Core\Render\Element::property($name)) {
    throw new \InvalidArgumentException('Cannot dynamically check if an element has a property. Use \\Drupal\\bootstrap\\Utility\\Element::unsetProperty instead.');
  }
  return parent::__isset($name);
}