1--TEST-- 2Test array_sum() function with empty array 3--FILE-- 4<?php 5$input = []; 6 7echo "array_sum() version:\n"; 8var_dump(array_sum($input)); 9 10echo "array_reduce() version:\n"; 11var_dump(array_reduce($input, fn($carry, $value) => $carry + $value, 0)); 12?> 13--EXPECT-- 14array_sum() version: 15int(0) 16array_reduce() version: 17int(0) 18