Question

I know that it’s rather an unusual question, but I need to find next 10th position

Let me clear with an example:

I will have some numbers like

2, 5, 8, 13, 28, 35, 42, 49

I want to find the next 10th position

2  =>  10
5  =>  10
8  =>  10
13  =>  20
28  =>  30
35  =>  40
42  =>  50
49  =>  50

How can I find it, please help guys. thanks.

Sorry for poor english.

Answer 1

$next10th = round( $number + 5 , -1 ,  PHP_ROUND_HALF_DOWN )

If the number is integer, you can also use:

$next10th = $number + 9 - (($number-1) % 10)