sbergmann Fri Apr 6 01:28:20 2001 EDT
Added files:
/php4/pear/Cache URL.php
Log:
Initial checkin of URL Cache.
Index: php4/pear/Cache/URL.php
+++ php4/pear/Cache/URL.php
<?php
/**
* URL_Cache
*
* Purpose:
*
* Caching the contents of a remote URL.
*
* Example:
*
* require_once "Cache/URL.php";
*
* $FUNCTION_CACHE_CONTAINER = "file";
* $FUNCTION_CACHE_CONTAINER_OPTIONS = array(
* "cache_dir" => "/tmp/",
* "filename_prefix" => "cache_");
*
* $data = get_cached_url("http://www.test.com/");
*
* @author Sebastian Bergmann <[EMAIL PROTECTED]>
* @module URL_Cache
* @modulegroup URL_Cache
* @package Cache
* @version $Revision: 1.1 $
* @access public
*/
// +----------------------------------------------------------------------+
// | PHP version 4.0 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997, 1998, 1999, 2000, 2001 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.0 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/2_02.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | [EMAIL PROTECTED] so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Authors: Sebastian Bergmann <[EMAIL PROTECTED]> |
// +----------------------------------------------------------------------+
//
// $Id: URL.php,v 1.1 2001/04/06 08:28:20 sbergmann Exp $
require_once 'Cache.php';
/**
* Caches the contents of a remote URL.
*
* @param string $url
* @param mixed $expires
* @return string $data
* @access public
*/
function get_cached_url($url, $expires = 0) {
global $FUNCTION_CACHE_CONTAINER, $FUNCTION_CACHE_CONTAINER_OPTIONS;
static $cache;
// create Cache object, if needed
if (!is_object($cache)) {
$cache = new Cache($FUNCTION_CACHE_CONTAINER,
$FUNCTION_CACHE_CONTAINER_OPTIONS);
}
// generate Cache ID
$id = md5($url);
// query Cache
$data = $cache->get($id);
// Cache miss: Retrieve document at given URL and store it
if ($data == NULL) {
$fp = @fopen($url, "r");
if($fp) {
$data = fread($fp, 65536);
fclose($fp);
$cache->save($id, $data, $expires);
}
}
return $data;
}
?>
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