File.class.php
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<?php
// +----------------------------------------------------------------------
// | TOPThink [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2013 http://topthink.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace Think\Storage\Driver;
use Think\Storage;
// 本地文件写入存储类
class File extends Storage
{
private $contents = array();
/**
* 架构函数
*
* @access public
*/
public function __construct()
{}
/**
* 文件内容读取
*
* @access public
* @param string $filename
* 文件名
* @return string
*/
public function read($filename, $type = '')
{
return $this->get($filename, 'content', $type);
}
/**
* 文件写入
*
* @access public
* @param string $filename
* 文件名
* @param string $content
* 文件内容
* @return boolean
*/
public function put($filename, $content, $type = '')
{
$dir = dirname($filename);
if (! is_dir($dir)) {
mkdir($dir, 0777, true);
}
if (false === file_put_contents($filename, $content)) {
E(L('_STORAGE_WRITE_ERROR_') . ':' . $filename);
} else {
$this->contents[$filename] = $content;
return true;
}
}
/**
* 文件追加写入
*
* @access public
* @param string $filename
* 文件名
* @param string $content
* 追加的文件内容
* @return boolean
*/
public function append($filename, $content, $type = '')
{
if (is_file($filename)) {
$content = $this->read($filename, $type) . $content;
}
return $this->put($filename, $content, $type);
}
/**
* 加载文件
*
* @access public
* @param string $filename
* 文件名
* @param array $vars
* 传入变量
* @return void
*/
public function load($_filename, $vars = null)
{
if (! is_null($vars)) {
extract($vars, EXTR_OVERWRITE);
}
include $_filename;
}
/**
* 文件是否存在
*
* @access public
* @param string $filename
* 文件名
* @return boolean
*/
public function has($filename, $type = '')
{
return is_file($filename);
}
/**
* 文件删除
*
* @access public
* @param string $filename
* 文件名
* @return boolean
*/
public function unlink($filename, $type = '')
{
unset($this->contents[$filename]);
return is_file($filename) ? unlink($filename) : false;
}
/**
* 读取文件信息
*
* @access public
* @param string $filename
* 文件名
* @param string $name
* 信息名 mtime或者content
* @return boolean
*/
public function get($filename, $name, $type = '')
{
if (! isset($this->contents[$filename])) {
if (! is_file($filename)) {
return false;
}
$this->contents[$filename] = file_get_contents($filename);
}
$content = $this->contents[$filename];
$info = array(
'mtime' => filemtime($filename),
'content' => $content
);
return $info[$name];
}
}