I have arrays with the following names:
 $MyMondayClasses, $MyTuesdayClasses, $MyWednesdayClasses, $MyThursdayClasses, $MyFridayClasses

And I have an array for days of the week:
 $days = array('Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday');

I want to loop through the days of the week and then run the appropriate array, but I'm not sure how to refer to the variable to make:

```
foreach($days as $value){
    foreach($My{$value}Classes as $ClassKey => $ClassVar){
        some code goes here
    }
}

```

I used to use eval for this sort of thing, but understand that's not best practice. Anyway, the above code isn't working.