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<?php |
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declare(strict_types=1); |
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namespace voku\cache; |
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/** |
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* AdapterArray: simple array-cache adapter |
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*/ |
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class AdapterArray implements iAdapter |
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{ |
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/** |
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* @var array |
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*/ |
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private static $values = []; |
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/** |
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* @var array<string, array<int>> |
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*/ |
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private static $expired = []; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function exists(string $key): bool |
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{ |
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$this->removeExpired($key); |
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return \array_key_exists($key, self::$values); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function get(string $key) |
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{ |
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return $this->exists($key) ? self::$values[$key] : null; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function installed(): bool |
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{ |
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return true; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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1 |
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public function remove(string $key): bool |
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{ |
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$this->removeExpired($key); |
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if (\array_key_exists($key, self::$values) === true) { |
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unset(self::$values[$key]); |
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return true; |
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} |
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return false; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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1 |
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public function removeAll(): bool |
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{ |
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1 |
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self::$values = []; |
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1 |
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self::$expired = []; |
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1 |
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return true; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function set(string $key, $value): bool |
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{ |
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self::$values[$key] = $value; |
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return true; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function setExpired(string $key, $value, int $ttl = 0): bool |
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{ |
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self::$values[$key] = $value; |
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if ($ttl !== 0) { |
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self::$expired[$key] = [\time(), $ttl]; |
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} |
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return true; |
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} |
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/** |
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* Remove expired cache. |
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* |
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* @param string $key |
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* |
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* @return bool |
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*/ |
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private function removeExpired($key): bool |
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{ |
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if ( |
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\array_key_exists($key, self::$expired) === false |
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|| |
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\array_key_exists($key, self::$values) === false |
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) { |
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return false; |
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} |
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4 |
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list($time, $ttl) = self::$expired[$key]; |
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\assert(\is_int($time)); |
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\assert(\is_int($ttl)); |
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if (\time() > ($time + $ttl)) { |
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unset(self::$values[$key]); |
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} |
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4 |
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if (!isset(self::$values[$key])) { |
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unset(self::$expired[$key]); |
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} |
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return true; |
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} |
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} |
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voku /
simple-cache
