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Viewing / Editing File: Cache.php

<?php

namespace Detection\Cache;

use Psr\SimpleCache\CacheInterface;

class Cache implements CacheInterface
{
    /**
     * @var array|array{cache_key:string, cache_value:CacheItem} $cache_db
     */
    protected array $cache_db = [];

public function count(): int
    {
        return count($this->cache_db);
    }

/**
     * @return array{string}
     */
    public function getKeys(): array
    {
        return array_keys($this->cache_db);
    }

/**
     * @throws CacheException
     */
    public function get(string $key, mixed $default = null): CacheItem|null
    {
        if (empty($key)) {
            throw new CacheException('Invalid cache key');
        }

return $this->cache_db[$key] ?? null;
    }

/**
     * @throws CacheException
     */
    public function set(string $key, mixed $value, \DateInterval|int|null $ttl = null): bool
    {
        if (empty($key)) {
            throw new CacheException('Invalid cache key');
        }
        $item = new CacheItem($key, $value, $ttl);
        $this->cache_db[$key] = $item;
        return true;
    }

public function delete(string $key): bool
    {
        unset($this->cache_db[$key]);
        return true;
    }

public function clear(): bool
    {
        $this->cache_db = [];
        return true;
    }

public function getMultiple(iterable $keys, mixed $default = null): iterable
    {
        return array_map(function ($key) {
            return $this->cache_db[$key];
        }, (array)$keys);
    }

/**
     * @param array<array{key:string, value:string, ttl:int}> $values
     * @param \DateInterval|int|null $ttl
     * @return bool
     */
    public function setMultiple(iterable $values, \DateInterval|int|null $ttl = null): bool
    {
        foreach ($values as $cacheItemArray) {
            $item = new CacheItem(...$cacheItemArray);
            $this->cache_db[$cacheItemArray['key']] = $item;
        }
        return true;
    }

public function deleteMultiple(iterable $keys): bool
    {
        foreach ($keys as $key) {
            unset($this->cache_db[$key]);
        }
        return true;
    }

public function has(string $key): bool
    {
        return isset($this->cache_db[$key]);
    }
}

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