gjerokrsteski / pimf-framework

core/Pimf/Cache/Storages/File.php

<?php
/**
 * Pimf
 *
 * @copyright Copyright (c)  Gjero Krsteski (http://krsteski.de)
 * @license   http://opensource.org/licenses/MIT MIT License
 */

namespace Pimf\Cache\Storages;

/**
 * @package Cache_Storages
 * @author  Gjero Krsteski <gjero@krsteski.de>
 */
class File extends Storage
{
    /**
     * The path to which the cache files should be written.
     *
     * @var string
     */
    protected $path;

    /**
     * @param $path
     */
    public function __construct($path)
    {
        $this->path = $path;
    }

    /**
     * Determine if an item exists in the cache.
     *
     * @param $key
     *
     * @return bool
     */
    public function has($key)
    {
        return file_exists($this->path . $key);
    }

    /**
     * @param string $key
     *
     * @return bool|mixed|null
     */
    protected function retrieve($key)

This method seems to be duplicated in your project.

    {
        if (!$this->has($key)) {
            return null;
        }

        $cache = file_get_contents($this->path . $key);

        // compare the timestamp to the current time when we read the file.
        if (time() >= substr($cache, 0, 10)) {
            $this->forget($key);
            return null;
        }

        return unserialize(substr($cache, 10));
    }

    /**
     * Write an item to the cache for a given number of minutes.
     *
     * <code>
     *    // Put an item in the cache for 15 minutes
     *    Cache::put('name', 'Robin', 15);
     * </code>
     *
     * @param string $key
     * @param mixed  $value
     * @param int    $minutes
     *
     * @return int|void
     */
    public function put($key, $value, $minutes)
    {
        if ((int)$minutes <= 0) {
            return null;
        }

        $value = $this->expiration($minutes) . serialize($value);

        return file_put_contents($this->path . $key, $value, LOCK_EX);
    }

    /**
     * Write an item to the cache for five years.
     *
     * @param $key
     * @param $value
     *
     * @return int|void
     */
    public function forever($key, $value)
    {
        return $this->put($key, $value, 2628000);
    }

    /**
     * Delete an item from the cache.
     *
     * @param string $key
     *
     * @return bool
     */
    public function forget($key)
    {
        if ($this->has($key)) {

            unlink($this->path . $key);

            clearstatcache();

            return true;
        }

        return false;
    }
}