Call php variable array name in foreach loop

Question

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.

Answer 1

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

Sounds not very clever.

Why don't you just have one array, with 'monday', 'tuesday' etc. as keys - and then have your data arrays for each day under that key …?

Answer 2

Does not make sense .. you should use array but if you insist you can try :

foreach ( $days as $value ) {
    $name = sprintf("My%sClasses", $value);
    if (! isset(${$name})) { // the boss asked
        continue;
    }
    foreach ( ${$name} as $ClassKey => $ClassVar ) {
        // play some ball
    }
}