What best practices should be followed when writing PHP code to ensure functionality and readability?

When writing PHP code, it is important to follow best practices to ensure functionality and readability. This includes using meaningful variable names, commenting your code, following a consistent coding style, and avoiding unnecessary complexity. Example: 

// Use meaningful variable names
$firstName = "John";
$lastName = "Doe";

// Comment your code
// Calculate the total price including tax
$totalPrice = $price * (1 + $taxRate);

// Follow a consistent coding style
function calculateTotalPrice($price, $taxRate) {
    return $price * (1 + $taxRate);
}

// Avoid unnecessary complexity
if ($condition) {
    doSomething();
}

Keywords

PHP coding standards readability error handling security

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