prepare($deleteAppSql); $stmt->bind_param("i", $appId); if ($stmt->execute() === TRUE) { // 删除关联的图片 $deleteImagesSql = "DELETE FROM app_images WHERE app_id = ?"; $imgStmt = $conn->prepare($deleteImagesSql); $imgStmt->bind_param("i", $appId); $imgStmt->execute(); // 删除关联的版本 $deleteVersionsSql = "DELETE FROM app_versions WHERE app_id = ?"; $verStmt = $conn->prepare($deleteVersionsSql); $verStmt->bind_param("i", $appId); $verStmt->execute(); header('Location: index.php?success=App 删除成功'); } else { header('Location: index.php?error=App 删除失败: '. $conn->error); } exit; ?>