public function getManipulations()
    {
        $manipulations = array_map(function ($key) {
            return $key . '_' . $this->manipulations[$key];
        }, array_keys($this->manipulations ?: []));

        return implode(',', $manipulations);
    }
public function getManipulations()
    {
        $manipulations = array_map(function ($key) {
            return $key . '_' . $this->manipulations[$key];
        }, array_keys($this->manipulations ?: []));

        return implode(',', $manipulations);
    }
public function getManipulations ( ) { $ manipulations = array_map ( function ( $ key ) { return $ key . '_' . $ this -> manipulations [ $ key ] ; } , array_keys ( $ this -> manipulations ? : [ ] ) ) ; return implode ( ',' , $ manipulations ) ; }
Get the string representation of all manipulations that
need to be executed on the given resource.

@return string|null
Get the string representation of all manipulations that need to be executed on the given resource .