# Hierarchical PSR-6 cache pool 
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This is an implementation for the PSR-6 for an hierarchical cache architecture. 

If you have a cache key like `|users|:uid|followers|:fid|likes` where `:uid` and `:fid` are arbitrary integers. You
 may flush all followers by flushing `|users|:uid|followers`.
  
It is a part of the PHP Cache organisation. To read about features like tagging and hierarchy support please read 
the shared documentation at [www.php-cache.com](http://www.php-cache.com). 

### Install

```bash
composer require cache/hierarchical-cache
```
 
### Use

Read the [documentation on usage](http://www.php-cache.com/en/latest/hierarchy/).

### Implement

Read the [documentation on implementation](http://www.php-cache.com/en/latest/implementing-cache-pools/hierarchy/).

### Contribute

Contributions are very welcome! Send a pull request to the [main repository](https://github.com/php-cache/cache) or 
report any issues you find on the [issue tracker](http://issues.php-cache.com).