What are the best practices for handling PHP arrays and loops to ensure accurate results?

When working with PHP arrays and loops, it is important to properly initialize variables, use appropriate loop structures, and correctly access array elements to ensure accurate results. Make sure to use descriptive variable names and comment your code to improve readability and maintainability.

// Example of best practices for handling PHP arrays and loops

// Initializing an array
$numbers = [1, 2, 3, 4, 5];

// Using a foreach loop to iterate over the array
foreach ($numbers as $number) {
    // Accessing and processing each element
    echo $number * 2 . "\n";
}