What are some other programming principles, such as "EVA" and "KISS," that can be beneficial to follow when working with PHP?

One programming principle that can be beneficial to follow when working with PHP is "DRY" (Don't Repeat Yourself). This principle encourages developers to avoid duplicating code by creating reusable functions or classes. By following the DRY principle, developers can improve code readability, maintainability, and reduce the risk of introducing bugs.

// Example of implementing the DRY principle in PHP
function calculateArea($length, $width) {
    return $length * $width;
}

$area = calculateArea(5, 10);
echo "The area is: " . $area;