99 lines
2.0 KiB
PHP
99 lines
2.0 KiB
PHP
<?php
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namespace Kanboard\Core\Cache;
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use Kanboard\Core\Tool;
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use LogicException;
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/**
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* Class FileCache
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*
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* @package Kanboard\Core\Cache
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*/
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class FileCache extends BaseCache
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{
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/**
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* Store an item in the cache
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*
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* @access public
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* @param string $key
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* @param mixed $value
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*/
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public function set($key, $value)
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{
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$this->createCacheFolder();
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file_put_contents($this->getFilenameFromKey($key), serialize($value));
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}
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/**
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* Retrieve an item from the cache by key
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*
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* @access public
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* @param string $key
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* @return mixed Null when not found, cached value otherwise
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*/
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public function get($key)
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{
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$filename = $this->getFilenameFromKey($key);
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if (file_exists($filename)) {
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return unserialize(file_get_contents($filename));
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}
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return null;
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}
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/**
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* Remove all items from the cache
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*
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* @access public
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*/
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public function flush()
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{
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$this->createCacheFolder();
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Tool::removeAllFiles(CACHE_DIR, false);
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}
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/**
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* Remove an item from the cache
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*
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* @access public
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* @param string $key
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*/
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public function remove($key)
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{
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$filename = $this->getFilenameFromKey($key);
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if (file_exists($filename)) {
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unlink($filename);
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}
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}
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/**
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* Get absolute filename from the key
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*
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* @access protected
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* @param string $key
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* @return string
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*/
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protected function getFilenameFromKey($key)
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{
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return CACHE_DIR.DIRECTORY_SEPARATOR.$key;
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}
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/**
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* Create cache folder if missing
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*
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* @access protected
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* @throws LogicException
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*/
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protected function createCacheFolder()
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{
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if (! is_dir(CACHE_DIR)) {
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if (! mkdir(CACHE_DIR, 0755)) {
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throw new LogicException('Unable to create cache directory: '.CACHE_DIR);
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}
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}
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}
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}
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