Cache File - Part File: Cache PHP script output in files

/**
 * cache class . used to cache a file or part of a file
 * @author Mohammad A.Baydoun <[email protected]>
 * @copyright copyright (c) copyright 2011
 * @license GNU Public Licence (GPL)
 */

/**
 * @version 1.0  support file and part file caching
 * @example
 * ***file caching***
 * $cache=new cache();
 * $cache->start_cache();
 * place data in between example (html /php echo of your output)
 * $cache->end_cache();
 *
 *  * ***part file caching***
 * $cache=new cache();
 * $cache->start_cache($id); where $id is the part you want to cache it 
 * place data in between example (html /php echo of your output)
 * $cache->end_cache();
 */

/**
 * check the sample in order to see the class in action
 * please note that the folder upload should be 777;
 */