How can PHP's array_sum() function be used to accurately sum values with decimal places?

When using PHP's array_sum() function to sum values with decimal places, it's important to ensure that the values are stored as floats in the array. If the values are stored as strings or integers, the function may not accurately sum them. To fix this issue, make sure that the values in the array are explicitly defined as floats before using array_sum(). 

$numbers = [1.5, 2.75, 3.25, 4.5];
$sum = array_sum(array_map('floatval', $numbers));
echo $sum; // Output: 12

Keywords

PHP array_sum() decimal places precision floating-point arithmetic

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