public function shift() {
		$this->validateStore();

		$this->flashed[ static::CURRENT_KEY ] = $this->flashed[ static::NEXT_KEY ];
		$this->flashed[ static::NEXT_KEY ] = [];
	}
public function shift() {
		$this->validateStore();

		$this->flashed[ static::CURRENT_KEY ] = $this->flashed[ static::NEXT_KEY ];
		$this->flashed[ static::NEXT_KEY ] = [];
	}
public function shift ( ) { $ this -> validateStore ( ) ; $ this -> flashed [ static :: CURRENT_KEY ] = $ this -> flashed [ static :: NEXT_KEY ] ; $ this -> flashed [ static :: NEXT_KEY ] = [ ] ; }
Shift current store and replace it with next store.

@return void
Shift current store and replace it with next store .