(PHP 7, PHP 8)

SessionUpdateTimestampHandlerInterface::validateIdValidate ID


abstract public SessionUpdateTimestampHandlerInterface::validateId ( string $id ) : bool

Validates a given session ID. A session ID is valid, if a session with that ID already exists. This function is automatically executed when a session is to be started, a session ID is supplied and session.use_strict_mode is enabled.



The session ID.

Return Values

Returns true for valid ID, false otherwise. Note that this value is returned internally to PHP for processing.

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