<?php

class caching {
    private $dir = false;
    private $time = 5;
    
    public function __construct($time = 5) {
        $this->dir = $_SERVER['DOCUMENT_ROOT']."/cache/products/";
        $this->time = $time; // Cachetime
    }
    
    public function getContent($filename, $xmldata) {
        if (file_exists($this->dir.$filename) && (filemtime($this->dir.$filename) > (time() - 60 * $this->time ))) {
            $file = file_get_contents($this->dir.$filename);
        } else {
            
            $file = json_encode($xmldata);
            
            $this->saveFile($filename, $file);
        }
        
        return json_decode($file);
    }
    
    public function saveFile($filename, $xmldata){
            $filename_dir  = $this->dir . $filename;
            if ($fp = fopen($filename_dir, 'w+')){
                    fwrite($fp, $xmldata);
                    fclose($fp);
                    return true;
            } else  return false;
    } 
}