How can PHP interact with client-side elements like progress bars for real-time updates on script execution progress?

To interact with client-side elements like progress bars for real-time updates on script execution progress, you can use AJAX to send updates from the PHP script to the client-side. This involves setting up an AJAX request in your PHP script to send progress updates to the client-side, where you can then update the progress bar accordingly. 

<?php
// Simulate a long-running script
for ($i = 1; $i <= 10; $i++) {
    // Perform some task
    // Calculate progress percentage
    $progress = $i * 10;

    // Send progress update to client-side
    echo "<script>updateProgressBar($progress);</script>";
    flush(); // Flush output buffer to send updates immediately
    sleep(1); // Simulate processing time
}
?>

Keywords

PHP client-side elements progress bars real-time updates script execution.

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