How can JavaScript be integrated with PHP to enhance file upload progress tracking functionality?

To enhance file upload progress tracking functionality, JavaScript can be integrated with PHP by using AJAX to send periodic requests to the server to check the progress of the file upload. This allows for real-time updates on the progress of the upload without having to constantly refresh the page. 

<?php
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_FILES['file'])) {
    $file = $_FILES['file'];
    
    $total = $file['size'];
    $uploaded = 0;
    
    $targetDir = "uploads/";
    $targetFile = $targetDir . basename($file['name']);
    
    move_uploaded_file($file['tmp_name'], $targetFile);
    
    echo json_encode(['status' => 'success']);
}
?>

Keywords

JavaScript PHP file upload progress tracking integration

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