prepare("UPDATE users SET phone = ?, phone_hash = ? WHERE email = ?"); $stmt->execute([$encryptedPhone, $phoneHash, $email]); if ($stmt->rowCount() > 0) { echo "✅ Success! Phone updated for $email\n"; echo " Encrypted: $encryptedPhone\n"; echo " Hash: $phoneHash\n"; } else { echo "❌ Failed. User with email $email not found or no changes made.\n"; }