How can a status indicator be implemented in PHP to prevent users from selecting another drink while one is still being processed?

To prevent users from selecting another drink while one is still being processed, a status indicator can be implemented in PHP. This indicator can be set to "processing" when a drink order is submitted and then changed to "complete" once the order is finished. During the "processing" status, the user interface can be disabled to prevent further drink selections.

<?php

// Set initial status to "complete"
$status = "complete";

// Check if a drink order is being processed
if ($status == "processing") {
    // Disable user interface to prevent further drink selections
    echo "Currently processing a drink order. Please wait.";
} else {
    // Allow user to select a drink
    echo "Select your drink.";
}

// Simulate processing a drink order
$status = "processing";

?>