if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['filename'])) {
$file = basename($_POST['filename']); // Prevent path traversal
if (file_exists($file)) {
unlink($file);
echo "✅ Deleted: $file";
} else {
echo "❌ File not found: $file";
}
} else {
echo "⛔ Invalid request.";
}