What are the potential pitfalls of using sleep() function in PHP for creating a loading screen?

Using the sleep() function in PHP for creating a loading screen can result in the entire script being delayed, causing a poor user experience. To create a loading screen without blocking the script execution, consider using AJAX requests to simulate the loading process asynchronously. 

<?php
// Simulate loading process without blocking script execution
echo "Loading...";

// Send AJAX request to server-side script to perform actual tasks
// Example using jQuery AJAX
?>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script>
    $.ajax({
        url: 'backend_script.php',
        success: function(response) {
            // Do something with the response
        }
    });
</script>

Keywords

sleep function loading screen performance user experience alternative solutions

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