<?php
$a=array(5,15,25);
echo array_sum($a);
?>
Return the sum of all the values in the array (5+15+25):
<?php
$a=array(5,15,25);
echo array_sum($a);
?>
<?php
$indexedArray = Array(20, 20, 5.5, "str");
$associativeArray = Array(
1 => 20,
2 => 20,
3 => 5.5,
4 => "str"
);
echo array_sum($indexedArray) . "<br>"; // 45.5
echo array_sum($associativeArray); // 45.5
?>