PHP Program to find sum of array elements

Program

<?php
$arr = array(10, 21, 36);
$sum = 0;
foreach($arr as $val)
	$sum += $val;
echo "Array elements:<br>";
foreach($arr as $val)
	echo $val . " ";
echo "<p> Sum of array elements: " . $sum . "</p>";
?>

Output

Array elements:
10 21 36
Sum of array elements: 67