How can the use of arrays in PHP affect the accuracy of calculations in a script?

Using arrays in PHP can affect the accuracy of calculations in a script if the array contains non-numeric values or if the array keys are not properly set up. To ensure accurate calculations, it's important to properly initialize and populate the array with numeric values before performing any calculations.

// Example of initializing and populating an array with numeric values for accurate calculations
$numbers = [10, 20, 30, 40, 50];
$sum = array_sum($numbers);
echo "The sum of the numbers is: " . $sum;