$weekdayNumber = ”;

switch ($weekdayNumber) {
case 1:
return ‘Monday’;
break;
case 2:
return ‘Tuesday’;
break;
case 3:
return ‘Wednesday’;
break;
case 4:
return ‘Thursday’;
break;
case 5:
return ‘Friday’;
break;
case 6:
return ‘Saturday’;
break;
case 7:
return ‘Sunday’;
}