Swift - My collection view is not outputting an extra amount - swift

Question

The count of chosenPlanArray.count is 5 here, and that is how many cells my collection view ends up having.
However, when i try an append values from the collection view to arrays, my collection view is iterating over itself an extra amount of times - in this example it gets to 9 iterations. Even though 'return chosenPlayArray.count' is 5. This is very random and ive been playing with my code all day trying to fix it. Has this ever happened to anybody ?
public func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return chosenPlanArray.count
}
public func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "customCell", for: indexPath) as! CustomPlanItCollectionViewCell
cell.planImage.downloadedFrom(link: chosenPlanArray[indexPath.item].imageForPlan!)
cell.planLbl.text = chosenPlanArray[indexPath.item].nameOfEvent
cell.dateTimeLbl.text = chosenPlanArray[indexPath.item].eventStartsAt
if cell.dateTimeLbl.text == nil {
datesForFirebase = [""]
} else {
datesForFirebase.append(cell.dateTimeLbl.text!)
}
individualPlanNames.append(cell.planLbl.text!)
imagesOfPlan.append(chosenPlanArray[indexPath.row].imageForPlan!)
print(chosenPlanArray.count)
print(imagesOfPlan.count)
print(nameOfEventPlan.count)
print(individualPlanNames.count)
return cell
}
Here is my output for those print statements at the bottom. Notice how the first print statment is correct - the actual size of the collection view is 5, as you can tell by the numberOfitems in sec.. I find it weird how the other print statements start at 1, and then loop past the size of 'chosenPlanArray.count' - Is the issue the way i may be appending the values to my arrays? This is causing me to get the wrong number of values uploaded to my firebase. So i need to figure this tricky situation out. Thanks
5 // first print statement print(chosenPlanArray.count)
1 // second print statement print(imagesOfPlan.count)
1 // fourth print(nameOfEventPlan.count)
1 // third print(individualPlanNames.count)
5
2
2
2
5
3
3
3
5
4
4
4
5
5
5
5
5
6
6
6
5
7
7
7
5
8
8
8
5
9
9
9

Answer 1

You have to know that there is cell reusing , which means every scroll a call to cellForItemAt happens which means these lines run again
individualPlanNames.append(cell.planLbl.text!)
imagesOfPlan.append(chosenPlanArray[indexPath.row].imageForPlan!)
and the size of their content increases