What are some common methods for handling time-based events in a PHP browser game?

One common method for handling time-based events in a PHP browser game is to use timestamps to track when events should occur. By comparing the current timestamp with the timestamp of the last event, you can determine if enough time has passed for the event to trigger. You can then update the timestamp of the last event to the current timestamp to keep track of when the next event should occur. 

// Get the timestamp of the last event
$lastEventTimestamp = $user['last_event_timestamp'];

// Get the current timestamp
$currentTimestamp = time();

// Check if enough time has passed for the event to trigger (e.g. 1 hour)
if ($currentTimestamp - $lastEventTimestamp >= 3600) {
    // Trigger the event
    triggerEvent();

    // Update the timestamp of the last event to the current timestamp
    $user['last_event_timestamp'] = $currentTimestamp;

    // Save the updated user data
    saveUserData($user);
}

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