What are the benefits of rewriting an old PHP script to adhere to modern coding standards and best practices?

Rewriting an old PHP script to adhere to modern coding standards and best practices can improve code readability, maintainability, and performance. It can also help prevent security vulnerabilities and make the code easier to debug and extend in the future. 

// Old PHP script
function add_numbers($num1, $num2){
    return $num1 + $num2;
}

// Rewritten PHP script
function addNumbers(int $num1, int $num2): int {
    return $num1 + $num2;
}

Keywords

PHP coding standards modern practices refactoring performance

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