86 lines
1.8 KiB
PHP
86 lines
1.8 KiB
PHP
<?php
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namespace Kirby\Cache;
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use APCUIterator;
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/**
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* APCu Cache Driver
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*
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* @package Kirby Cache
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* @author Bastian Allgeier <bastian@getkirby.com>
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* @link https://getkirby.com
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* @copyright Bastian Allgeier
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* @license https://opensource.org/licenses/MIT
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*/
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class ApcuCache extends Cache
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{
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/**
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* Determines if an item exists in the cache
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*
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* @param string $key
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* @return bool
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*/
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public function exists(string $key): bool
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{
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return apcu_exists($this->key($key));
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}
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/**
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* Flushes the entire cache and returns
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* whether the operation was successful
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*
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* @return bool
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*/
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public function flush(): bool
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{
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if (empty($this->options['prefix']) === false) {
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return apcu_delete(new APCUIterator('!^' . preg_quote($this->options['prefix']) . '!'));
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} else {
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return apcu_clear_cache();
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}
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}
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/**
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* Removes an item from the cache and returns
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* whether the operation was successful
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*
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* @param string $key
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* @return bool
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*/
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public function remove(string $key): bool
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{
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return apcu_delete($this->key($key));
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}
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/**
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* Internal method to retrieve the raw cache value;
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* needs to return a Value object or null if not found
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*
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* @param string $key
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* @return \Kirby\Cache\Value|null
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*/
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public function retrieve(string $key)
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{
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return Value::fromJson(apcu_fetch($this->key($key)));
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}
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/**
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* Writes an item to the cache for a given number of minutes and
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* returns whether the operation was successful
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*
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* <code>
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* // put an item in the cache for 15 minutes
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* $cache->set('value', 'my value', 15);
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* </code>
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*
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* @param string $key
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* @param mixed $value
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* @param int $minutes
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* @return bool
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*/
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public function set(string $key, $value, int $minutes = 0): bool
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{
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return apcu_store($this->key($key), (new Value($value, $minutes))->toJson(), $this->expiration($minutes));
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}
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}
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