public function input(callable $callback = null): string
    {
        $_csrf = $this->create($callback);
        return '<input type="hidden" name="_csrf" value="'.$this->c::escAttr($_csrf).'" />';
    }
public function input(callable $callback = null): string
    {
        $_csrf = $this->create($callback);
        return '<input type="hidden" name="_csrf" value="'.$this->c::escAttr($_csrf).'" />';
    }
public function input ( callable $ callback = null ) : string { $ _csrf = $ this -> create ( $ callback ) ; return '<input type="hidden" name="_csrf" value="' . $ this -> c :: escAttr ( $ _csrf ) . '" />' ; }
CSRF input markup.

@since 17xxxx CSRF utils.

@param callable|null $callback Callback.

@return string Hidden input field with `_csrf` token.
See also: {@link create()}
CSRF input markup .