PHP coding challenge

Variable-length argument lists

āœØ Your Task

Define a function sum that that accepts a variable number of arguments and returns a sum of those arguments.

āœļø PHP PHP version: 8.1
šŸ‘‰ Press "Run" and check the result below.
Test cases
A sum of 1, 2, and 3 should be 6
A sum of -1 and 1 should be 0
The sum should be zero if no arguments are provided