What strategies can be employed to ensure that documentation aligns with the actual codebase, and how can developers avoid discrepancies between the two?

To ensure that documentation aligns with the actual codebase, developers can employ the following strategies: 1. Regularly update documentation as code changes are made. 2. Use tools like PHPDocumentor to automatically generate documentation from code comments. 3. Encourage team members to review and verify documentation for accuracy.

/**
 * This function adds two numbers together.
 *
 * @param int $num1 The first number to add.
 * @param int $num2 The second number to add.
 * @return int The sum of the two numbers.
 */
function addNumbers($num1, $num2) {
    return $num1 + $num2;
}