What are the best practices for implementing delayed actions in PHP for IoT devices like microcontrollers?

Implementing delayed actions in PHP for IoT devices like microcontrollers can be achieved by using the sleep() function to introduce a delay before executing the desired action. This can be useful for scenarios where a certain action needs to be performed after a specific amount of time has passed. 

// Delayed action implementation
$delay = 5; // Delay time in seconds
sleep($delay);

// Perform desired action after delay
echo "Delayed action performed after $delay seconds.";

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