PMA\libraries\dbi\DBIMysqli::fieldName PHP Метод

returns name of $i. field in $result

public fieldName ( mysqli_result $result, integer $i ) : string
$result	mysqli_result	result set identifier
$i	integer	field
Результат	string	name of $i. field in $result

    public function fieldName($result, $i)
    {
        return mysqli_fetch_field_direct($result, $i)->name;
    }

DBIMysqli