static setTrustedHeaderName(string $key, string $value) Sets the name for trusted

string getContent() Gets the current response content.

string getAlnum(string $key, string $default = '') Returns the alphabetic characters and digits

setName(string $name) Sets the session name.

gc($maxlifetime) {@inheritdoc} Parameters

bool has(string $type) Has flash messages for a given type?

bool regenerate(bool $destroy = false, int $lifetime = null) Regenerates id that represents this

string getErrorMessage() Returns an informative upload error message.

clear() Clears all attributes.

string getUserInfo() Gets the user info.