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application/libraries/Cache_service.php

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+<?php
+defined('BASEPATH') or exit('No direct script access allowed');
+/*Powered By: Manaknightdigital Inc. https://manaknightdigital.com/ Year: 2021*/
+/**
+ * Cache Class
+ */
+class Cache_service
+{
+  public $_type = 'file';
+    /**
+     * Cache Adapter.
+     *
+     * @var mixed
+     */
+    public $_adapter = null;
+
+    /**
+     * Cache time
+     *
+     * @var mixed
+     */
+    public $_cache_time = 3600;
+
+    public function set_adapter($type, $cache_time=3600)
+    {
+        $this->_type = $type;
+        $this->_cache_time = $cache_time;
+
+        switch ($type)
+        {
+            case 'file':
+                $this->_adapter = null;
+                break;
+            default:
+                break;
+        }
+    }
+
+    /**
+     * Set cache Key
+     *
+     * @param string $key
+     * @param mixed $value
+     * @return void
+     */
+    public function set($key, $value)
+    {
+      file_put_contents(__DIR__ . '/../config/' . md5($key) . '.json', json_encode($value));
+    }
+
+    public function get($key)
+    {
+      $file_path = __DIR__ . '/../config/' . md5($key) . '.json';
+
+      if (file_exists($file_path))
+      {
+        if (time() - $this->_cache_time < filemtime($file_path))
+        {
+          $data = file_get_contents($file_path);
+          return json_decode($data, TRUE);
+        }
+        else
+        {
+          unlink($file_path);
+        }
+      }
+        return NULL;
+    }
+
+    public function remove($key)
+    {
+      $file_path = __DIR__ . '/../config/' . md5($key) . '.json';
+
+      if (file_exists($file_path))
+      {
+          unlink($file_path);
+          return TRUE;
+      }
+        return NULL;
+    }
+}