How can the issue of repetitive clicks when triggering PHP functions be addressed effectively?

The issue of repetitive clicks when triggering PHP functions can be effectively addressed by implementing a method to prevent multiple submissions within a short period. One common approach is to use session variables to track the time of the last submission and prevent subsequent submissions until a certain cooldown period has passed.

session_start();

if(isset($_SESSION['last_submit_time']) && time() - $_SESSION['last_submit_time'] < 5) {
    // Prevent multiple submissions within 5 seconds
    echo "Please wait before submitting again.";
} else {
    // Process the PHP function
    // Your function code here

    // Update last submit time
    $_SESSION['last_submit_time'] = time();
}