public function getParameters() : array
    {
        if (is_null($this->parameters)) {
            $matches = [];
            $regExp = self::PARAMS_SEARCH_REGEXP;
            preg_match_all($regExp, $this->str, $matches);
            $this->parameters = $matches[2];
        }

        return $this->parameters;
    }
public function getParameters() : array
    {
        if (is_null($this->parameters)) {
            $matches = [];
            $regExp = self::PARAMS_SEARCH_REGEXP;
            preg_match_all($regExp, $this->str, $matches);
            $this->parameters = $matches[2];
        }

        return $this->parameters;
    }
public function getParameters ( ) : array { if ( is_null ( $ this -> parameters ) ) { $ matches = [ ] ; $ regExp = self :: PARAMS_SEARCH_REGEXP ; preg_match_all ( $ regExp , $ this -> str , $ matches ) ; $ this -> parameters = $ matches [ 2 ] ; } return $ this -> parameters ; }
Get a list containing all parameters identified.

@return array
Get a list containing all parameters identified .