Php versions – PHP echo() corrupting readfile() output
I have this PHP script (process.php): <?php // Include necessary libraries for database, PDF generation, and ZIP compression. require_once('db_connection.php'); require_once('tcpdf/tcpdf.php'); if (isset($_POST['submit'])) { // Get uploaded file data $csvFile = $_FILES['csv_file']['tmp_name']; // Initialize progress variables $totalRecords = count(file($csvFile)) - 1;…