A total sum of sequential numbers in PHP

Question

This is a simple question,I guess, but I couldn't figure it out.

How do I get a total sum of sequential numbers in PHP Like 2,4,6,8,10 . . . .1000

Thank you for the help.

Answer 1

$sum = array_sum(explode(',', '2,4,6,8'));

edit: if you just want the sum of even numbers within a range you could

$sum = array_sum(range(2,1000,2));