- <?php
- //文件和图片上传类
- /*
- 使用方法:
- function _upload($upload_dir){
- $upload = new UploadFile();
- //设置上传文件大小
- $upload->maxSize=1024*1024*2;//最大2M
- //设置上传文件类型
- $upload->allowExts = explode(',','jpg,gif,png,bmp');
- //设置附件上传目录
- $upload->savePath ='../images/'.$upload_dir."/";
- $upload->saveRule = cp_uniqid;
- if(!$upload->upload())
- {
- //捕获上传异常
- $this->error($upload->getErrorMsg());
- }
- else
- {
- //取得成功上传的文件信息
- return $upload->getUploadFileInfo();
- }
- }
- */
- class UploadFile{
- // 上传文件的最大值
- public $maxSize = -1;
- // 是否支持多文件上传
- public $supportMulti = true;
- // 允许上传的文件后缀
- // 留空不作后缀检查
- public $allowExts = array();
- // 允许上传的文件类型
- // 留空不做检查
- public $allowTypes = array();
- // 使用对上传图片进行缩略图处理
- public $thumb = false;
- // 缩略图最大宽度
- public $thumbMaxWidth;
- // 缩略图最大高度
- public $thumbMaxHeight;
- // 缩略图前缀
- public $thumbPrefix = 'thumb_';
- public $thumbSuffix = '';
- // 缩略图保存路径
- public $thumbPath = '';
- // 缩略图文件名
- public $thumbFile = '';
- // 是否移除原图
- public $thumbRemoveOrigin = false;
- // 压缩图片文件上传
- public $zipImages = false;
- // 启用子目录保存文件
- public $autoSub = false;
- // 子目录创建方式 可以使用hash date
- public $subType = 'hash';
- public $dateFormat = 'Ymd';
- public $hashLevel = 1; // hash的目录层次
- // 上传文件保存路径
- public $savePath = '';
- public $autoCheck = true; // 是否自动检查附件
- // 存在同名是否覆盖
- public $uploadReplace = false;
- // 上传文件命名规则
- // 例如可以是 time uniqid com_create_guid 等
- // 必须是一个无需任何参数的函数名 可以使用自定义函数
- public $saveRule = '';
- // 上传文件Hash规则函数名
- // 例如可以是 md5_file sha1_file 等
- public $hashType = 'md5_file';
- // 错误信息
- private $error = '';
- // 上传成功的文件信息
- private $uploadFileInfo ;
- /**
- +----------------------------------------------------------
- * 架构函数
- +----------------------------------------------------------
- * @access public
- +----------------------------------------------------------
- */
- public function __construct($maxSize='',$allowExts='',$allowTypes='',$savePath='',$saveRule='')
- {
- if(!empty($maxSize) && is_numeric($maxSize)) {
- $this->maxSize = $maxSize;
- }
- if(!empty($allowExts)) {
- if(is_array($allowExts)) {
- $this->allowExts = array_map('strtolower',$allowExts);
- }else {
- $this->allowExts = explode(',',strtolower($allowExts));
- }
- }
- if(!empty($allowTypes)) {
- if(is_array($allowTypes)) {
- $this->allowTypes = array_map('strtolower',$allowTypes);
- }else {
- $this->allowTypes = explode(',',strtolower($allowTypes));
- }
- }
- if(!empty($savePath)) {
- $this->savePath = $savePath;
- }
- if(!empty($saveRule)) {
- $this->saveRule = $saveRule;
- }
- }
- private function save($file)
- {
- $filename = $file['savepath'].$file['savename'];
- if(!$this->uploadReplace && is_file($filename)) {
- // 不覆盖同名文件
- $this->error = '文件已经存在!'.$filename;
- return false;
- }
- // 如果是图像文件 检测文件格式
- if( in_array(strtolower($file['extension']),array('gif','jpg','jpeg','bmp','png','swf')) && false === getimagesize($file['tmp_name'])) {
- $this->error = '非法图像文件';
- return false;
- }
- if(!move_uploaded_file($file['tmp_name'], iconv('utf-8','gbk',$filename))) {
- $this->error = '文件上传保存错误!';
- return false;
- }
- if($this->thumb && in_array(strtolower($file['extension']),array('gif','jpg','jpeg','bmp','png'))) {
- $image = getimagesize($filename);
- if(false !== $image) {
- //是图像文件生成缩略图
- $thumbWidth = explode(',',$this->thumbMaxWidth);
- $thumbHeight = explode(',',$this->thumbMaxHeight);
- $thumbPrefix = explode(',',$this->thumbPrefix);
- $thumbSuffix = explode(',',$this->thumbSuffix);
- $thumbFile = explode(',',$this->thumbFile);
- $thumbPath = $this->thumbPath?$this->thumbPath:$file['savepath'];
- // 生成图像缩略图
- if(file_exists(dirname(__FILE__).'/Image.class.php'))
- {
- require_once(dirname(__FILE__).'/Image.class.php');
- $realFilename = $this->autoSub?basename($file['savename']):$file['savename'];
- for($i=0,$len=count($thumbWidth); $i<$len; $i++) {
- $thumbname = $thumbPath.$thumbPrefix[$i].substr($realFilename,0,strrpos($realFilename, '.')).$thumbSuffix[$i].'.'.$file['extension'];
- Image::thumb($filename,$thumbname,'',$thumbWidth[$i],$thumbHeight[$i],true);
- }
- if($this->thumbRemoveOrigin) {
- // 生成缩略图之后删除原图
- unlink($filename);
- }
- }
- }
- }
- if($this->zipImags) {
- // TODO 对图片压缩包在线解压
- }
- return true;
- }
- /**
- +----------------------------------------------------------
- * 上传文件
- +----------------------------------------------------------
- * @access public
- +----------------------------------------------------------
- * @param string $savePath 上传文件保存路径
- +----------------------------------------------------------
- * @return string
- +----------------------------------------------------------
- * @throws ThinkExecption
- +----------------------------------------------------------
- */
- public function upload($savePath ='')
- {
- //如果不指定保存文件名,则由系统默认
- if(empty($savePath))
- $savePath = $this->savePath;
- // 检查上传目录
- if(!is_dir($savePath)) {
- // 检查目录是否编码后的
- if(is_dir(base64_decode($savePath))) {
- $savePath = base64_decode($savePath);
- }else{
- // 尝试创建目录
- if(!mkdir($savePath)){
- $this->error = '上传目录'.$savePath.'不存在';
- return false;
- }
- }
- }else {
- if(!is_writeable($savePath)) {
- $this->error = '上传目录'.$savePath.'不可写';
- return false;
- }
- }
- $fileInfo = array();
- $isUpload = false;
- // 获取上传的文件信息
- // 对$_FILES数组信息处理
- $files = $this->dealFiles($_FILES);
- foreach($files as $key => $file) {
- //过滤无效的上传
- if(!empty($file['name'])) {
- //登记上传文件的扩展信息
- $file['key'] = $key;
- $file['extension'] = $this->getExt($file['name']);
- $file['savepath'] = $savePath;
- $file['savename'] = $this->getSaveName($file);
- // 自动检查附件
- if($this->autoCheck) {
- if(!$this->check($file))
- return false;
- }
- //保存上传文件
- if(!$this->save($file)) return false;
- /*
- if(function_exists($this->hashType)) {
- $fun = $this->hashType;
- $file['hash'] = $fun(auto_charset($file['savepath'].$file['savename'],'utf-8','gbk'));
- }
- */
- //上传成功后保存文件信息,供其他地方调用
- unset($file['tmp_name'],$file['error']);
- $fileInfo[] = $file;
- $isUpload = true;
- }
- }
- if($isUpload) {
- $this->uploadFileInfo = $fileInfo;
- return true;
- }else {
- $this->error = '没有选择上传文件';
- return false;
- }
- }
- /**
- +----------------------------------------------------------
- * 转换上传文件数组变量为正确的方式
- +----------------------------------------------------------
- * @access private
- +----------------------------------------------------------
- * @param array $files 上传的文件变量
- +----------------------------------------------------------
- * @return array
- +----------------------------------------------------------
- */
- private function dealFiles($files) {
- $fileArray = array();
- foreach ($files as $file){
- if(is_array($file['name'])) {
- $keys = array_keys($file);
- $count = count($file['name']);
- for ($i=0; $i<$count; $i++) {
- foreach ($keys as $key)
- $fileArray[$i][$key] = $file[$key][$i];
- }
- }else{
- $fileArray = $files;
- }
- break;
- }
- return $fileArray;
- }
- /**
- +----------------------------------------------------------
- * 获取错误代码信息
- +----------------------------------------------------------
- * @access public
- +----------------------------------------------------------
- * @param string $errorNo 错误号码
- +----------------------------------------------------------
- * @return void
- +----------------------------------------------------------
- * @throws ThinkExecption
- +----------------------------------------------------------
- */
- protected function error($errorNo)
- {
- switch($errorNo) {
- case 1:
- $this->error = '上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值';
- break;
- case 2:
- $this->error = '上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值';
- break;
- case 3:
- $this->error = '文件只有部分被上传';
- break;
- case 4:
- $this->error = '没有文件被上传';
- break;
- case 6:
- $this->error = '找不到临时文件夹';
- break;
- case 7:
- $this->error = '文件写入失败';
- break;
- default:
- $this->error = '未知上传错误!';
- }
- return ;
- }
- /**
- +----------------------------------------------------------
- * 根据上传文件命名规则取得保存文件名
- +----------------------------------------------------------
- * @access private
- +----------------------------------------------------------
- * @param string $filename 数据
- +----------------------------------------------------------
- * @return string
- +----------------------------------------------------------
- */
- private function getSaveName($filename)
- {
- $rule = $this->saveRule;
- if(empty($rule)) {//没有定义命名规则,则保持文件名不变
- $saveName = $filename['name'];
- }else {
- if(function_exists($rule)) {
- //使用函数生成一个唯一文件标识号
- $saveName = $rule().".".$filename['extension'];
- }else {
- //使用给定的文件名作为标识号
- $saveName = $rule.".".$filename['extension'];
- }
- }
- if($this->autoSub) {
- // 使用子目录保存文件
- $saveName = $this->getSubName($filename).'/'.$saveName;
- }
- return $saveName;
- }
- /**
- +----------------------------------------------------------
- * 获取子目录的名称
- +----------------------------------------------------------
- * @access private
- +----------------------------------------------------------
- * @param array $file 上传的文件信息
- +----------------------------------------------------------
- * @return string
- +----------------------------------------------------------
- */
- private function getSubName($file)
- {
- switch($this->subType) {
- case 'date':
- $dir = date($this->dateFormat,time());
- break;
- case 'hash':
- default:
- $name = md5($file['savename']);
- $dir = '';
- for($i=0;$i<$this->hashLevel;$i++) {
- $dir .= $name{0}.'/';
- }
- break;
- }
- if(!is_dir($file['savepath'].$dir)) {
- mkdir($file['savepath'].$dir);
- }
- return $dir;
- }
- /**
- +----------------------------------------------------------
- * 检查上传的文件
- +----------------------------------------------------------
- * @access private
- +----------------------------------------------------------
- * @param array $file 文件信息
- +----------------------------------------------------------
- * @return boolean
- +----------------------------------------------------------
- */
- private function check($file) {
- if($file['error']!== 0) {
- //文件上传失败
- //捕获错误代码
- $this->error($file['error']);
- return false;
- }
- //检查文件Mime类型
- if(!$this->checkType($file['type'])) {
- $this->error = '上传文件MIME类型不允许!';
- return false;
- }
- //检查文件类型
- if(!$this->checkExt($file['extension'])) {
- $this->error ='上传文件类型不允许';
- return false;
- }
- //文件上传成功,进行自定义规则检查
- //检查文件大小
- if(!$this->checkSize($file['size'])) {
- $this->error = '上传文件大小超出限制!';
- return false;
- }
- //检查是否合法上传
- if(!$this->checkUpload($file['tmp_name'])) {
- $this->error = '非法上传文件!';
- return false;
- }
- return true;
- }
- /**
- +----------------------------------------------------------
- * 检查上传的文件类型是否合法
- +----------------------------------------------------------
- * @access private
- +----------------------------------------------------------
- * @param string $type 数据
- +----------------------------------------------------------
- * @return boolean
- +----------------------------------------------------------
- */
- private function checkType($type)
- {
- if(!empty($this->allowTypes))
- return in_array(strtolower($type),$this->allowTypes);
- return true;
- }
- /**
- +----------------------------------------------------------
- * 检查上传的文件后缀是否合法
- +----------------------------------------------------------
- * @access private
- +----------------------------------------------------------
- * @param string $ext 后缀名
- +----------------------------------------------------------
- * @return boolean
- +----------------------------------------------------------
- */
- private function checkExt($ext)
- {
- if(!empty($this->allowExts))
- return in_array(strtolower($ext),$this->allowExts,true);
- return true;
- }
- /**
- +----------------------------------------------------------
- * 检查文件大小是否合法
- +----------------------------------------------------------
- * @access private
- +----------------------------------------------------------
- * @param integer $size 数据
- +----------------------------------------------------------
- * @return boolean
- +----------------------------------------------------------
- */
- private function checkSize($size)
- {
- return !($size > $this->maxSize) || (-1 == $this->maxSize);
- }
- /**
- +----------------------------------------------------------
- * 检查文件是否非法提交
- +----------------------------------------------------------
- * @access private
- +----------------------------------------------------------
- * @param string $filename 文件名
- +----------------------------------------------------------
- * @return boolean
- +----------------------------------------------------------
- */
- private function checkUpload($filename)
- {
- return is_uploaded_file($filename);
- }
- /**
- +----------------------------------------------------------
- * 取得上传文件的后缀
- +----------------------------------------------------------
- * @access private
- +----------------------------------------------------------
- * @param string $filename 文件名
- +----------------------------------------------------------
- * @return boolean
- +----------------------------------------------------------
- */
- private function getExt($filename)
- {
- $pathinfo = pathinfo($filename);
- return $pathinfo['extension'];
- }
- /**
- +----------------------------------------------------------
- * 取得上传文件的信息
- +----------------------------------------------------------
- * @access public
- +----------------------------------------------------------
- * @return array
- +----------------------------------------------------------
- */
- public function getUploadFileInfo()
- {
- return $this->uploadFileInfo;
- }
- /**
- +----------------------------------------------------------
- * 取得最后一次错误信息
- +----------------------------------------------------------
- * @access public
- +----------------------------------------------------------
- * @return string
- +----------------------------------------------------------
- */
- public function getErrorMsg()
- {
- return $this->error;
- }
- }//类定义结束
- ?>
来源: http://www.phpxs.com/code/1003564/