简单实例php教程缓存文件生成技术实例
class Cache
{
protected $_cacheDir;
public function __construct()
{
$this->_cacheDir = "./cache";
}
パブリック関数 setCacheDir ($cacheDir)
{
if(empty($cacheDir)){
$this->_cacheDir = $this->_cacheDir;
}else{
$this->_cacheDir = $cacheDir;
}
}
public function getCache($name)
{
$file_path = $this->_cacheDir.'/namma_cache-'.$name;
if(!file_exists($file_path))
{
return false;
}
$handle = @fopen($file_path,'rb');
$data = @fread($handle,filesize($file_path));
return $this->unformatData($data);
@flose($handle);
}
public function setCache($name,$data)
{
$file_path = $this->gt;_cacheDir.'/ namma_cache-'.$name;
$data = $this->formatData($data);
$fp = fopen($file_path, 'w');
fwrite($fp,$data);
fclose($ fp);
return $file_path;
}
public function formatData($data)
{
return Serialize($data);
}
public function unformatData($data)
{
return unserialize($data);
}
}