Array to string conversion with cache #8090
Description
I’m noticing some errors in my logs when using DeviceDetector, both related to caching and PHP warnings. The errors appear when the package tries to save regex data to Redis or process certain vendor fragments.
[2025-08-25T13:18:26.656569+00:00] cache.WARNING: Failed to save key "DeviceDetector-646regexes-console" of type array: protocol error, got 'a' as reply type byte {"key":"DeviceDetector-646regexes-console","exception":"[object] (RedisException(code: 0): protocol error, got 'a' as reply type byte\\n at /home/bas/app_1e8a7d42-ba90-4f14-bc0b-0ae8202e27ba/vendor/symfony/cache/Traits/Redis6Proxy.php:254)","cache-adapter":"Symfony\\\\Component\\\\Cache\\\\Adapter\\\\RedisAdapter"} []
[2025-08-25T13:18:26.657008+00:00] cache.WARNING: Failed to save key "console646-all" of type string: protocol error, got '"' as reply type byte {"key":"console646-all","exception":"[object] (RedisException(code: 0): protocol error, got '\\"' as reply type byte\\n at /home/bas/app_1e8a7d42-ba90-4f14-bc0b-0ae8202e27ba/vendor/symfony/cache/Traits/Redis6Proxy.php:254)","cache-adapter":"Symfony\\\\Component\\\\Cache\\\\Adapter\\\\RedisAdapter"} []
[2025-08-25T13:18:26.657808+00:00] cache.WARNING: Failed to save key "DeviceDetector-646regexes-carbrowser" of type array. {"key":"DeviceDetector-646regexes-carbrowser","exception":null,"cache-adapter":"Symfony\\\\Component\\\\Cache\\\\Adapter\\\\RedisAdapter"} []
[2025-08-25T13:18:28.073341+00:00] cache.WARNING: Failed to save key "camera646-all" of type string. {"key":"camera646-all","exception":null,"cache-adapter":"Symfony\\\\Component\\\\Cache\\\\Adapter\\\\RedisAdapter"} []
[2025-08-25T13:18:28.075060+00:00] cache.WARNING: Failed to save key "DeviceDetector-646regexes-portablemediaplayer" of type array. {"key":"DeviceDetector-646regexes-portablemediaplayer","exception":null,"cache-adapter":"Symfony\\\\Component\\\\Cache\\\\Adapter\\\\RedisAdapter"} []
[2025-08-25T13:18:28.075574+00:00] php.ERROR: Warning: Array to string conversion {"exception":"[object] (ErrorException(code: 0): Warning: Array to string conversion at /home/bas/app_1e8a7d42-ba90-4f14-bc0b-0ae8202e27ba/vendor/matomo/device-detector/Parser/VendorFragment.php:44)"} []
[2025-08-25T13:18:28.076203+00:00] php.ERROR: Warning: Array to string conversion {"exception":"[object] (ErrorException(code: 0): Warning: Array to string conversion at /home/bas/app_1e8a7d42-ba90-4f14-bc0b-0ae8202e27ba/vendor/matomo/device-detector/Parser/VendorFragment.php:44)"} []
[2025-08-25T13:18:28.076450+00:00] php.ERROR: Warning: Array to string conversion {"exception":"[object] (ErrorException(code: 0): Warning: Array to string conversion at /home/bas/app_1e8a7d42-ba90-4f14-bc0b-0ae8202e27ba/vendor/matomo/device-detector/Parser/VendorFragment.php:44)"} []
[2025-08-25T13:18:28.076631+00:00] php.ERROR: Warning: Array to string conversion {"exception":"[object] (ErrorException(code: 0): Warning: Array to string conversion at /home/bas/app_1e8a7d42-ba90-4f14-bc0b-0ae8202e27ba/vendor/matomo/device-detector/Parser/VendorFragment.php:44)"} []
Environment:
Symfony 7.3
Redis : 8.0.2
PHP 8.4
matomo/device-detector version: 6.4.6