How can collaboration between developers and programmers be optimized to troubleshoot PHP-related issues in a CMS environment?

Issue: To optimize collaboration between developers and programmers to troubleshoot PHP-related issues in a CMS environment, it is essential to establish clear communication channels, use version control systems like Git for tracking changes, and document code thoroughly to aid in debugging and problem-solving.

// Example code snippet demonstrating the use of comments for documentation
// This function calculates the sum of two numbers
function calculate_sum($num1, $num2) {
    $sum = $num1 + $num2; // Calculate the sum
    return $sum; // Return the result
}