How can the PHP code provided in the forum thread be improved to prevent the download dialog from appearing when navigating to a different page?

The issue is likely caused by the PHP code sending a file download header when navigating to a different page. To prevent the download dialog from appearing, you can check if the request is not for a specific file type before sending the download header. 

<?php
if (isset($_GET['file']) && !empty($_GET['file'])) {
    $file = $_GET['file'];
    // Check if the file is not of a specific type before sending download header
    if (!in_array(pathinfo($file, PATHINFO_EXTENSION), array('pdf', 'txt', 'doc'))) {
        header('Location: /error-page.php');
        exit;
    }
    header('Content-Type: application/octet-stream');
    header('Content-Disposition: attachment; filename="' . basename($file) . '"');
    readfile($file);
} else {
    header('Location: /error-page.php');
}
?>

Keywords

PHP header Content-Disposition attachment navigation

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