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<?php
namespace kalanis\kw_cache\Cache;
use kalanis\kw_cache\Interfaces\ICache;
/**
* Class Dual
* @package kalanis\kw_cache\Cache
* Caching content in any cache - another cache as semaphore for detection
*/
class Dual implements ICache
{
protected ICache $storageCache;
protected ICache $reloadCache;
public function __construct(ICache $storageCache, ?ICache $reloadCache = null)
$this->storageCache = $storageCache;
$this->reloadCache = $reloadCache ?: $storageCache;
}
public function init(array $what): void
$this->storageCache->init($what);
$this->reloadCache->init($what);
public function exists(): bool
return $this->storageCache->exists() && !$this->reloadCache->exists();
public function set(string $content): bool
$result = $this->storageCache->set($content);
if (false === $result) {
return false;
// remove signal to save
if ($this->reloadCache->exists()) {
$this->reloadCache->clear();
return true;
public function get(): string
return $this->exists() ? $this->storageCache->get() : '' ;
public function clear(): void
$this->storageCache->clear();
alex-kalanis /
kw_cache
