一个不错php文件缓存类文件

<?php
class Cache {
 /** 缓存目录 **/
 var $CacheDir        = './c';
 /** 缓存的文件 **/
 var $CacheFile        = '';
 /** 文件缓存时间(分钟) **/
 var $CacheTime        = 0;
 /** 文件是否已缓存 **/
 var $CacheFound        = False;
 /** 错误及调试信息 **/
 var $DebugMsg        = NULL;

 function Cache($CacheTime = 0) {
  $this->CacheTime    = $CacheTime;
 }

 private function Run() {
  /** 缓存时间大于0,检测缓存文件的修改时间,在缓存时间内为缓存文件名,超过缓存时间为False，
                小于等于0,返回false,并清理已缓存的文件
         **/
  Return $this->CacheTime ? $this->CheckCacheFile() : $this->CleanCacheFile();
 }
 function GetCache($VistUrl,$CacheFileType = 'html')
 {
  $this->SetCacheFile($VistUrl,$CacheFileType);

  $fileName=$this->CheckCacheFile();
  if($fileName)
  {
   $fp = fopen($fileName,"r");
   $content_= fread($fp, filesize($fileName));
   fclose($fp);
   return $content_;
  }
  else
  {
   return false;
  }
 }
 private function SetCacheFile($VistUrl,$CacheFileType = 'html') {
  if(empty($VistUrl)) {
   /** 默认为index.html **/
   $this->CacheFile = 'index';
  }else {
   /** 传递参数为$_POST时 **/
   $this->CacheFile = is_array($VistUrl) ? implode('.',$VistUrl) : $VistUrl;
  }
  $this->CacheFile = $this->CacheDir.'/'.md5($this->CacheFile);
  $this->CacheFile.= '.'.$CacheFileType;
 }

 function SetCacheTime($t = 60) {
  $this->CacheTime = $t;
 }

 private function CheckCacheFile() {
  if(!$this->CacheTime || !file_exists($this->CacheFile)) {Return False;}
  /** 比较文件的建立/修改日期和当前日期的时间差 **/
  $GetTime=(Time()-Filemtime($this->CacheFile))/(60*1);
  /** Filemtime函数有缓存,注意清理 **/
  Clearstatcache();
  $this->Debug('Time Limit '.($GetTime*60).'/'.($this->CacheTime*60).'');
  $this->CacheFound = $GetTime <= $this->CacheTime ? $this->CacheFile : False;
  Return $this->CacheFound;
 }

 function SaveToCacheFile($VistUrl,$Content,$CacheFileType = 'html') {
  $this->SetCacheFile($VistUrl,$CacheFileType);
  if(!$this->CacheTime) {
   Return False;
  }
  /** 检测缓存目录是否存在 **/
  if(true === $this->CheckCacheDir()) {
   $CacheFile = $this->CacheFile;
   $CacheFile = str_replace('//','/',$CacheFile);
   $fp = @fopen($CacheFile,"wb");
   if(!$fp) {
    $this->Debug('Open File '.$CacheFile.' Fail');
   }else {
    if(@!fwrite($fp,$Content)){
     $this->Debug('Write '.$CacheFile.' Fail');
    }else {
     $this->Debug('Cached File');
    };
    @fclose($fp);
   }
  }else {
   /** 缓存目录不存在，或不能建立目录 **/
   $this->Debug('Cache Folder '.$this->CacheDir.' Not Found');
  }
 }

 private function CheckCacheDir() {
  if(file_exists($this->CacheDir)) { Return true; }
  /** 保存当前工作目录 **/
  $Location = getcwd();
  /** 把路径划分成单个目录 **/
  $Dir = split("/", $this->CacheDir);
  /** 循环建立目录 **/
  $CatchErr = True;
  for ($i=0; $i<count($Dir); $i++){
   if (!file_exists($Dir[$i])){
    /** 建立目录失败会返回False 返回建立最后一个目录的返回值 **/
    $CatchErr = @mkdir($Dir[$i],0777);
   }
   @chdir($Dir[$i]);
  }
  /** 建立完成后要切换到原目录 **/
  chdir($Location);
  if(!$CatchErr) {
   $this->Debug('Create Folder '.$this->CacheDir.' Fail');
  }
  Return $CatchErr;
 }

 private function CleanCacheFile() {
  if(file_exists($this->CacheFile)) {
   @chmod($this->CacheFile,777);
   @unlink($this->CacheFile);
  }
  /** 置没有缓存文件 **/
  $this->CacheFound = False;
  Return $this->CacheFound;
 }

 function Debug($msg='') {
  if(DEBUG) {
   $this->DebugMsg[] = '[Cache]'.$msg;
  }
 }

 function GetError() {
  Return empty($this->DebugMsg) ? '' : "<br>n".implode("<br>n",$this->DebugMsg);
 }
}/* end of class */

?>

<?php
$homepage = file_get_contents('http://www.111cn.net/');
echo $homepage;
?>

<?php

function fetch_urlpage_contents($url){
$c=file_get_contents($url);
return $c;
}
//获取匹配内容
function fetch_match_contents($begin,$end,$c)
{
$begin=change_match_string($begin);
$end=change_match_string($end);
$p = "{$begin}(.*){$end}";
if(eregi($p,$c,$rs))
{
return $rs[1];}
else { return "";}
}//转义正则表达式字符串
function change_match_string($str){
//注意，以下只是简单转义
//$old=array("/","$");
//$new=array("/","$");
$str=str_replace($old,$new,$str);
return $str;
}

//采集网页
function pick($url,$ft,$th)
{
$c=fetch_urlpage_contents($url);
foreach($ft as $key => $value)
{
$rs[$key]=fetch_match_contents($value["begin"],$value["end"],$c);
if(is_array($th[$key]))
{ foreach($th[$key] as $old => $new)
{
$rs[$key]=str_replace($old,$new,$rs[$key]);
}
}
}
return $rs;
}

$url="http://www.111cn.net"; //要采集的地址
$ft["title"]["begin"]="<title>"; //截取的开始点
$ft["title"]["end"]="</title>"; //截取的结束点
$th["title"]["中山"]="广东"; //截取部分的替换

$ft["body"]["begin"]="<body>"; //截取的开始点
$ft["body"]["end"]="</body>"; //截取的结束点
$th["body"]["中山"]="广东"; //截取部分的替换

$rs=pick($url,$ft,$th); //开始采集

echo $rs["title"];
echo $rs["body"]; //输出
?>

<?php

function fetch_urlpage_contents($url){
$c=file_get_contents($url);
return $c;
}
//获取匹配内容
function fetch_match_contents($begin,$end,$c)
{
$begin=change_match_string($begin);
$end=change_match_string($end);
$p = "#{$begin}(.*){$end}#iU";//i表示忽略大小写，U禁止贪婪匹配
if(preg_match_all($p,$c,$rs))
{
return $rs;}
else { return "";}
}//转义正则表达式字符串
function change_match_string($str){
//注意，以下只是简单转义
$old=array("/","$",'?');
$new=array("/","$",'?');
$str=str_replace($old,$new,$str);
return $str;
}

//采集网页
function pick($url,$ft,$th)
{
$c=fetch_urlpage_contents($url);
foreach($ft as $key => $value)
{
$rs[$key]=fetch_match_contents($value["begin"],$value["end"],$c);
if(is_array($th[$key]))
{ foreach($th[$key] as $old => $new)
{
$rs[$key]=str_replace($old,$new,$rs[$key]);
}
}
}
return $rs;
}

$url="http://www.111cn.net"; //要采集的地址
$ft["a"]["begin"]='<a'; //截取的开始点<br />
$ft["a"]["end"]='>'; //截取的结束点

$rs=pick($url,$ft,$th); //开始采集

print_r($rs["a"]);

?>

<?php
function GetSources($Url,$User_Agent='',$Referer_Url='') //抓取某个指定的页面
{
//$Url 需要抓取的页面地址
//$User_Agent 需要返回的user_agent信息 如“baiduspider”或“googlebot”
$ch = curl_init();
curl_setopt ($ch, CURLOPT_URL, $Url);
curl_setopt ($ch, CURLOPT_USERAGENT, $User_Agent);
curl_setopt ($ch, CURLOPT_REFERER, $Referer_Url);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION,1);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
$MySources = curl_exec ($ch);
curl_close($ch);
return $MySources;
}
$Url = "http://www.111cn.net"; //要获取内容的也没
$User_Agent = "baiduspider+(+http://www.baidu.com/search/spider.htm)";
$Referer_Url = 'http://www.111cn.net/';
echo GetSources($Url,$User_Agent,$Referer_Url);
?>

 <?php
   /**
    * 上传文件
    *
    */
    public  function uploadTest(){
        require_once 'Lyc/Ftp/Ftp.class.php';
        $host=23.64.41.13';     //主机
        $user='tguser';                //用户名
        $pwd="";                         //密码   端口默认21 也可改
        $ftp=new Lyc_Ftp_Ftp($host,$user,$pwd);
        $res=$ftp->upload('test.rar',"F:\wwwroot\testarea\Lyc\Test\test.rar");
        if(!$res){
            echo " upload failure";
        }
 
    }
 
    public function downloadTest(){
        require_once 'Lyc/Ftp/Ftp.class.php';
        $host=33.64.41.135';
        $user='tguser';
        $pwd="";
        $ftp=new Lyc_Ftp_Ftp($host,$user,$pwd);
        $res=$ftp->download("c:\test.rar","test.rar");
        if(!$res){
            echo "download failure";
        }
 
    }

<?php
function get_url ($url,$cookie=false)
{
$url = parse_url($url);
$query = $url[path].”?”.$url[query];
echo “Query:”.$query;
$fp = fsockopen( $url[host], $url[port]?$url[port]:80 , $errno, $errstr, 30);
if (!$fp) {
return false;
} else {
$request = “GET $query HTTP/1.1rn”;
$request .= “Host: $url[host]rn”;
$request .= “Connection: Closern”;
if($cookie) $request.=”Cookie:   $cookien”;
$request.=”rn”;
fwrite($fp,$request);
while(!@feof($fp)) {
$result .= @fgets($fp, 1024);
}
fclose($fp);
return $result;
}
}
//获取url的html部分，去掉header
function GetUrlHTML($url,$cookie=false)
{
$rowdata = get_url($url,$cookie);
if($rowdata)
{
$body= stristr($rowdata,”rnrn”);
$body=substr($body,4,strlen($body));
return $body;
}

    return false;
}
?>

$fp = fsockopen($host, 80, $errno, $errstr, 30);
或
$fp = fsockopen($host, $port, $errno, $errstr, $connection_timeout);
修改后:
$fp = stream_socket_client("tcp://".$host."80", $errno, $errstr, 30);
或
$fp = stream_socket_client("tcp://".$host.":".$port, $errno, $errstr, $connection_timeout);

<form action=”upload.php” method=”post” enctype=”multipart/form-data”>
<p>
<input type=”file” name=”pictures[]” /><br />
<input type=”file” name=”pictures[]” /><br />
<input type=”file” name=”pictures[]” /><br />
<input type=”submit” value=”上传” />
</p>
</form> //手册中实例。

<?php
print_r($_FILES);
?>

<?php

class upload {
public $up_ext=array(), $up_max=5210, $up_dir;
private $up_name, $up_rename=true, $up_num=0, $up_files=array(), $up_ret=array();

function __construct($name, $ext=array(), $rename=true) {
if (!empty($name)) {
$this->up_name = $name;
!empty($ext) && $this->up_ext = $ext;
$this->up_rename = $rename;
$this->up_dir = website_dirroot.
$globals['cfg_upload_path'];
$this->initupload();
} else {
exit('upload文件域名称为空，初始化失败！');
}
}

private function initupload() {
if (is_array($_files[$this->up_name])) {
$up_arr = count($_files[$this->up_name]);
$up_all = count($_files[$this->up_name], 1);
$up_cnt = ($up_all - $up_arr) / $up_arr;
for ($i = 0; $i < $up_cnt; $i ++) {
if ($_files[$this->up_name]['error'][$i] != 4) {
$this->up_files[] = array(
'tmp_name' => $_files[$this->up_name]['tmp_name'][$i],
'name' => $_files[$this->up_name]['name'][$i],
'type' => $_files[$this->up_name]['type'][$i],
'size' => $_files[$this->up_name]['size'][$i],
'error' => $_files[$this->up_name]['error'][$i]
);
}
}
$this->up_num = count($this->up_files);
} else {
if (isset($_files[$this->up_name])) {
$this->up_files = array(
'tmp_name' => $_files[$this->up_name]['tmp_name'],
'name' => $_files[$this->up_name]['name'],
'type' => $_files[$this->up_name]['type'],
'size' => $_files[$this->up_name]['size'],
'error' => $_files[$this->up_name]['error']
);
$this->up_num = 1;
} else {
exit('没找找到需要upload的文件！');
}
}

$this->chkupload();
}

private function chkupload() {
if (empty($this->up_ext)) {
$up_mime = array('image/wbmp', 'image/bmp', 'image/gif', 'image/pjpeg', 'image/x-png');
foreach ($this->up_files as $up_file) {
$up_allw = false;
foreach ($up_mime as $mime) {
if ($up_file['type'] == $mime) {
$up_allw = true; break;
}
}
!$up_allw && exit('不允许上传'.$up_file['type'].'格式的文件！');

if ($up_file['size'] / 1024 > $this->up_max) {
exit('不允许上传大于 '.$this->up_max.'k 的文件！');
}
}
} else {
foreach ($this->up_files as $up_file) {
$up_ext = end(explode('.', $up_file['name']));

$up_allw = false;
foreach ($this->up_ext as $ext) {
if ($up_ext == $ext) {
$up_allw = true; break;
}
}
!$up_allw && exit('不允许上传.'.$up_ext.'格式的文件！');

if ($up_file['size'] / 1024 > $this->up_max) {
exit('不允许上传大于 '.$this->up_max.'k 的文件！');
}
}
}

$this->uploading();
}

private function uploading() {
if (io::dircreate($this->up_dir)) {
if (chmod($this->up_dir, 0777)) {
if (!empty($this->up_files)) {
foreach ($this->up_files as $up_file) {
if (is_uploaded_file($up_file['tmp_name'])) {
$file_name = $up_file['name'];
if ($this->up_rename) {
$file_ext = end(explode('.', $file_name));
$file_rnd = substr(md5(uniqid()), mt_rand(0, 26), 6);
$file_name = date('ymdhis').'_'.$file_rnd.'.'.$file_ext;
}
$file_name = $this->up_dir.'/'.$file_name;

if (move_uploaded_file($up_file['tmp_name'], $file_name)) {
$this->up_ret[] = str_replace(website_dirroot, '', $file_name);
} else {
exit('文件上传失败！');
}
}
}
}
} else {
exit('未开启写入权限！');
}
} else {
exit('上传目录创建失败！');
}
}

public function getupload() {
return empty($this->up_ret) ? false : $this->up_ret;
}

function __destruct() {}
}
?>