How can communication and collaboration be improved in PHP forums to foster a more positive and helpful environment?

Issue: Communication and collaboration in PHP forums can be improved by implementing a system that rewards helpful and positive contributions from users. Code snippet:

// Implement a reputation system that rewards users for helpful and positive contributions
function giveReputation($userId, $points) {
    // Code to give reputation points to a user
}

// Display user's reputation points next to their username in forum posts
function displayReputation($userId) {
    // Code to display user's reputation points
}