Initial commit

system/SuperSmash/library/cache.php

@@ -0,0 +1,107 @@
+<?php
+
+
+/**************************************/
+/****     SuperSmash Framework     ****/
+/****     Created By SuperSmash    ****/
+/****     Started on: 25-04-2012   ****/
+/**************************************/
+
+namespace system\library;
+use settings\settings;
+
+if (!defined("SUPERSMASH_FRAMEWORK")){die("You cannot access this page directly!");}
+
+class Cache 
+{
+    protected $path;
+
+    // Create the contructor
+    public function __construct() 
+    {
+        $this->path = settings::getFilePath() . DS . settings::getApp() . DS . 'cache';
+    }
+
+    // This function will set the cache path
+    public function set_path($path) 
+    {
+        // Remove any trailing slashes
+        $path = rtrim($path, '/');
+        $this->path = str_replace( array('\\', '/'), DS, $path );
+    }
+
+    // This function will read and returns the contents of the cached file
+    public function get($id) 
+    {
+        // Define a file path
+        $file = $this->path . DS . $id . '.cache';
+        
+        // check if our file exists
+        if(file_exists($file)) 
+        {
+            // Get our file contents and Unserialize our data
+            $data = file_get_contents($file);
+            $data = unserialize($data);
+
+            // Check out expire time, if expired, remove the file
+            if($data['expire_time'] < time()) 
+            {
+                unlink($file);
+                return false;
+            }
+            return $data['data'];
+        }
+        return false;
+    }
+
+    // This function will save the contents into the given file id.
+    public function save($id, $contents, $expire = 86400) 
+    {
+        // Define a file path
+        $file = $this->path . DS . $id . '.cache';
+        
+        // Create the files contents
+        $data = array(
+                    'expire_time' => (time() + $expire),
+                    'data' => $contents
+                );
+
+        // Save file and contents
+        if(file_put_contents( $file, serialize($data) )) 
+        {
+            // Try to put read/write permissions on the new file
+            @chmod($file, 0777);
+            return true;
+        }
+        return false;
+    }
+
+    // This function will delete a cached file
+    public function delete($id) 
+    {
+        // Define a file path
+        $file = $this->path . DS . $id . '.cache';
+        
+        // Return the direct result of the deleting
+        return unlink($file);
+    }
+
+    // This function will delete all the cached files
+    public function clear() 
+    {
+        // get a list of all files and directories
+        $files = scandir($this->path);
+        foreach($files as $file) 
+        {
+            // Define a file path
+            $file = $this->path . DS . $file;
+        
+            // We only want to delete the the cache files, not subfolders
+            if($file[0] != "." && $file != 'index.html') 
+            {
+                unlink($file); //Remove the file
+            }
+        }
+        return true;
+    }
+}