How to make Zend\Cache\Storage\Adapter\Filesystem work with multiple keys?

Question

Zend Framework

You need to implement the following behavior:

$cache->setItem(array('key1', 'key2', 'key3'), 'value');
$cache->getItem('key1');
$cache->getItem('key2');
$cache->getItem('key3');

That is, the same cache file can be accessed using different keys.
Are there any ways to implement something similar using the usual Zend\Cache\Storage\Adapter\Filesystem, or is the only way out is to write your own adapter/plugin?

Answer 1

Keep the list of keys separately and cache by the main key.

$allKeys = array(
            'Page' => array('page1', 'page2', ...),
);
function getKey($searchKey){
    foreach($allKeys as $mainKey => $keys){
        if (array_key_exists($searchKey, $keys[$mainKey])){
            return $keys[$maintKey][$searchKey];
        }
        return null;
    }
}
$key = getKey('page1');// or getKey('page2') // return Page
$cache->getItem($key);

Answer 2

I think this is an unusual task. So write a function:

function setItems($arr, $value) {
  for($key in $arr) {
    $cache->setItem($key, $value);
  }
}

setItem(['key1', 'key2'], 'value');
$cache->getItem('key1') == $cache->getItem('key2'); # true

And, in general, reconsider your architecture.