Without share.

src/Cache.php

@@ -0,0 +1,143 @@
+<?php namespace Efriandika\LaravelSettings;
+
+/**
+ * Class Cache
+ * @package Efriandika\LaravelSettings
+ */
+class Cache
+{
+
+    /**
+     * Path to cache file
+     *
+     * @var string
+     */
+    protected $cacheFile;
+
+    /**
+     * Cached Settings
+     *
+     * @var array
+     */
+    protected $settings;
+
+
+    /**
+     * Constructor
+     *
+     * @param string $cacheFile
+     */
+    public function __construct($cacheFile)
+    {
+        $this->cacheFile = $cacheFile;
+        $this->checkCacheFile();
+
+        $this->settings = $this->getAll();
+    }
+
+    /**
+     * Sets a value
+     *
+     * @param $key
+     * @param $value
+     *
+     * @return mixed
+     */
+    public function set($key, $value)
+    {
+        $this->settings[$key] = $value;
+        $this->store();
+
+        return $value;
+    }
+
+    /**
+     * Gets a value
+     *
+     * @param      $key
+     * @param null $default
+     *
+     * @return mixed
+     */
+    public function get($key, $default = null)
+    {
+        return (array_key_exists($key, $this->settings) ? $this->settings[$key] : $default);
+    }
+
+    /**
+     * Checks if $key is cached
+     *
+     * @param $key
+     *
+     * @return bool
+     */
+    public function hasKey($key)
+    {
+        return array_key_exists($key, $this->settings);
+    }
+
+    /**
+     * Gets all cached settings
+     *
+     * @return array
+     */
+    public function getAll()
+    {
+        $values = json_decode(file_get_contents($this->cacheFile), true);
+        foreach ($values as $key => $value) {
+            $values[$key] = unserialize($value);
+        }
+        return $values;
+    }
+
+    /**
+     * Stores all settings to the cache file
+     *
+     * @return void
+     */
+    private function store()
+    {
+        $settings = [];
+        foreach ($this->settings as $key => $value) {
+            $settings[$key] = serialize($value);
+        }
+        file_put_contents($this->cacheFile, json_encode($settings));
+    }
+
+    /**
+     * Removes a value
+     *
+     * @return void
+     */
+    public function forget($key)
+    {
+        if (array_key_exists($key, $this->settings)) {
+            unset($this->settings[$key]);
+        }
+        $this->store();
+    }
+
+    /**
+     * Removes all values
+     *
+     * @return void
+     */
+    public function flush()
+    {
+        file_put_contents($this->cacheFile, json_encode([]));
+        // fixed the set after immediately the flush, should be returned empty
+        $this->settings = [];
+    }
+
+    /**
+     * Checks if the cache file exists and creates it if not
+     *
+     * @return void
+     */
+    private function checkCacheFile()
+    {
+        if (!file_exists($this->cacheFile)) {
+            $this->flush();
+        }
+    }
+}