What considerations should be made when dealing with multi-digit values in PHP arrays or strings?

When dealing with multi-digit values in PHP arrays or strings, it is important to consider the data type of the values. If the values are intended to be treated as numbers, they should be stored as integers or floats rather than strings. This ensures proper mathematical operations can be performed on the values without unexpected results. Additionally, when accessing or manipulating multi-digit values in arrays, make sure to properly handle any type casting or conversions needed to maintain data integrity.

// Example of storing multi-digit numbers as integers in an array
$values = [123, 456, 789];

// Accessing and performing operations on multi-digit numbers in the array
$total = 0;
foreach ($values as $value) {
    $total += $value;
}

echo $total; // Output: 1368