澳门新葡亰平台游戏网站一个不错php文件缓存类文件

代码如下复制代码

 代码如下

class makeHtml{ var $fileName; //文件名 var $dirRoot; //目录地址

<?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 getFile ($name,$root){ $this-fileName = $name; $this-dirRoot =
$root; if(file_exists($root)) { $this-makeRoot($root); } }

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

function makeNew($content){$fp =
@fopen($this-dirRoot./.$this-fileName,w);if(!fwrite($fp,$content)){fclose($fp);@unlink($fn);return
0;}else{fclose($fp);return 1;} }

 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);

function _delFile() { if(unlink($this-fileName./.$this-fileRoot)) {
Return 1; } else { Return 0; } } function delFile($fileName,$fileRoot) {
if(unlink($fileRoot./.$fileName)) { Return 1; } else { Return 0; } }

  $fileName=$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 getRoot() { }

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

function makeRoot() { }

 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 delRoot() { }

 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 */

?>

You can leave a response, or trackback from your own site.

Leave a Reply

网站地图xml地图