Here is a PHP function that takes an array of integers and returns the sum of all even numbers in the array

sumEvenNumbersphp

<?php

function sumEvenNumbers(array $numbers): int {
  $sum = 0;
  foreach ($numbers as $number) {
    if ($number % 2 === 0) {
      $sum += $number;
    }
  }
  return $sum;
}

// Example usage
$numbers = [1, 2, 3, 4, 5, 6];
$evenSum = sumEvenNumbers($numbers);

echo "The sum of even numbers is: " . $evenSum;