Checks whether the request method is a "safe" HTTP method.

Link below defines GET and HEAD as "safe" methods, meaning they SHOULD NOT have side-effects, such as persisting $form_state changes.

Return value

bool

See also

\Symfony\Component\HttpFoundation\Request::isMethodSafe()

http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html#sec9.1.1

1 call to FormState::isRequestMethodSafe()

FormState::setCached in core/lib/Drupal/Core/Form/FormState.php

Sets this form to be cached.

File

core/lib/Drupal/Core/Form/FormState.php, line 645

Class

FormState

Stores information about the state of a form.

Namespace

Drupal\Core\Form

Code

protected function isRequestMethodSafe() {
  return in_array($this->requestMethod, [
    'GET',
    'HEAD',
  ]);
}

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