What are some best practices for organizing and structuring PHP code to prevent bugs?

One best practice for organizing and structuring PHP code to prevent bugs is to use proper naming conventions for variables, functions, and classes. This helps make the code more readable and reduces the chances of errors due to confusion or typos. Additionally, breaking down large chunks of code into smaller, more manageable functions can help isolate and fix bugs more easily. Example:

// Bad practice
$usrnme = "john_doe";
function add($a, $b){
    return $a + $b;
}

// Good practice
$username = "john_doe";
function addNumbers($num1, $num2){
    return $num1 + $num2;
}