| Name | Description |
|---|---|
| AbstractBackend | An abstract caching backend |
| ApcBackend | |
| FileBackend | |
| MemcachedBackend | |
| NullBackend | |
| PdoBackend | |
| RedisBackend | |
| SimpleFileBackend | |
| TransientMemoryBackend |
| Name | Description |
|---|---|
| BackendCompatibilityTrait | Helper trait for transitional backends not receiving the new (cache) EnvironmentConfiguration object |