SessionBagInterface
bool start() Starts the session storage.
mixed getName() Returns the session name.
bool has(string $name) Checks if an attribute is defined.
mixed remove(string $name) Removes an attribute.
string getName() Gets this bag's name.
class Session implements
int count() Returns the number of attributes.
bool migrate(bool $destroy = false, int $lifetime = null) Migrates the current session to a new
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