original_string: function csrf() {
  		return Cache::instance()->
  			exists(($this->sid?:session_id()).'.@',$data)?
  				$data['csrf']:FALSE;
  	}
code: function csrf() {
  		return Cache::instance()->
  			exists(($this->sid?:session_id()).'.@',$data)?
  				$data['csrf']:FALSE;
  	}
code_tokens: function csrf ( ) { return Cache :: instance ( ) -> exists ( ( $ this -> sid ? : session_id ( ) ) . '.@' , $ data ) ? $ data [ 'csrf' ] : FALSE ; }
docstring: Return anti-CSRF token
  @return string|FALSE
docstring_tokens: Return anti - CSRF token