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- <?php
- namespace Drupal\Core\Session;
- /**
- * Provides an interface for session handlers where writing can be disabled.
- */
- interface WriteSafeSessionHandlerInterface {
- /**
- * Sets whether or not a session may be written to storage.
- *
- * It is not possible to enforce writing of the session data. This method is
- * only capable of forcibly disabling that session data is written to storage.
- *
- * @param bool $flag
- * TRUE if the session the session is allowed to be written, FALSE
- * otherwise.
- */
- public function setSessionWritable($flag);
- /**
- * Returns whether or not a session may be written to storage.
- *
- * @return bool
- * TRUE if the session the session is allowed to be written, FALSE
- * otherwise.
- */
- public function isSessionWritable();
- }
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