$uri = $this->config->item(‘base_url’).
$this->config->item(‘index_page’).
$this->uri->uri_string();

//得出cache文件的文件名
$cacheName = md5($uri);

$this->_deleteCache($cache_name);

//删除cache文件函数
function _deleteCache($cache_name)
{
$path = $this->config->item(‘cache_path’);
$cache_path = ($path == ”) ? BASEPATH.’cache/’ : $path;
$cache_path .= $cache_name;

if(file_exists($cache_path))
{
touch($cache_path);
unlink($cache_path);
}else{
return false;
}
echo $cache_path;
}