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<?php
/**
*文件上传类 Upload
*/
class Upload {
const UPLOAD_SECCUSS = "上传成功!请进入下一步..." ;
const UPLOAD_FAILING = "上传失败!" ;
const UPLOAD_ERRORS = "上传图片失败，是图片文件为空、文件格式不正确,或是文件超过了限大小" ;
const NOT_UPLOAD_FILE = "不是上传的文件，你想干嘛！！" ;
var $id ; //id关联编号
var $dirStyle = 0 ; //设置文件上传目录方式0:mdir方式 ；1 ：mdir_YM 方式 ； 2:mdir_YM_D 方式
var $size ; //文件大小 单位:字节
var $type ; //文件类型
var $path ; //保存回路径
var $upfile ; //上传文件数组
//var $name ; //form中 "type=file" 输入框的name值
var $isVaild=false ; //验证
var $isSuccess=false ; //是否成功
//var $newpath ; // 已处理过的路径
var $newfilename ; //已处理过的文件名
const MY_DS = ‘/‘; //路径分隔符 通用的
function __construct($upfile,$path,$type="image/pjpeg,image/jpg,image/jpeg,image/gif,image/x-png,image/png,image/bmp",$size=50000){
$this->path = $path ;
$this->type = explode(‘,‘,$type) ;
$this->size = $size ;
$this->upfile = $upfile ;
}
/**
*用id号关联文件
*/
function setId($id){
$this->id = $id ;
}
/**
*设置文件上传目录方式
*/
function setDirStyle($id=1){
if($id == 1){
return ;
} else {
$this->dirStyle = 2 ;
}
}
/**
*验证文件是否可以上传
*/
function vaild(){
foreach( $this->type as $value ){
if( $this->upfile[‘type‘] == $value && $this->upfile[‘size‘] > 0 &&
$this->upfile[‘size‘] <= $this->size ){
$this->isVaild = true ;
return true ;
}
}
return $this->isVaild ;
}
/**
*判断是否上传成功
*/
function isSuccess(){
return $this->isSuccess ;
}
/**
*分年月建立日录
*/
function mdir_YM($path){
//$dir = date("Y-m") ;
$dir = date("Ym") ;
$path = str_replace(array(‘\‘),self::MY_DS,$path) ;
if( substr($path,-1,1) != self::MY_DS ){
$path .= self::MY_DS ;
}
if(! file_exists($path.$dir )){
if( mkdir($path.$dir) ){
$this->path= $path.$dir.self::MY_DS ;
}
}else{
$this->path= $path.$dir.self::MY_DS ;
}
}
/**
*分年月/日建立日录
*/
function mdir_YM_D($path){
//$dir = date("Y-m") ;
$dir = date("Ym") ;
$subdir = date("d") ;
$path = str_replace(array(‘\‘),self::MY_DS,$path);
if ( substr($path,-1,1) != self::MY_DS ){
$path .= self::MY_DS ;
}
$dirPath = $path.$dir ;
$subDirPath = $dirPath.self::MY_DS.$subdir ;
if (! file_exists( $dirPath )){
if ( mkdir( $dirPath ) ){
if (file_exists($dirPath ) && !file_exists( $subDirPath )){
if (mkdir( $subDirPath )){
$this->path= $subDirPath.self::MY_DS ;
}
}
}
} else if (!file_exists( $subDirPath )) {
if (mkdir( $subDirPath )){
$this->path= $subDirPath.self::MY_DS ;
}
} else {
$this->path = $subDirPath.self::MY_DS ;
}
}
/**
*根据路径创建目录
*@param $path 带文件名的路和径
*/
static function mdirPath($path){
$thePath = str_replace(array(‘\‘),self::MY_DS,$path);
$thePath = dirname(substr_compare($thePath,self::MY_DS,0,1) == 0 ? substr($thePath,1) : $thePath );
$sub = explode(self::MY_DS,$thePath) ;
$n = count($sub) ;
$i = 0 ;
$tempPath = ‘‘;
while($i < $n){
$tempPath .= $sub[$i++].self::MY_DS ;
if (!file_exists($tempPath)) {
if (! mkdir($tempPath)) {
return false ;
}
}
}
if($i >= $n){
return true;
}
}
/**
*（static)
*分年月/日建立日录
*/
static function sMdir_YM_D($path){
//$dir = date("Y-m") ;
$dir = date("Ym") ;
$subdir = date("d") ;
$path = str_replace(array(‘\‘),self::MY_DS,$path) ;
if( substr($path,-1,1) != self::MY_DS ){
$path .= self::MY_DS ;
}
$dirPath = $path.$dir ;
$subDirPath = $dirPath.self::MY_DS.$subdir ;
if (! file_exists( $dirPath )){
if ( mkdir( $dirPath ) ){
if (file_exists( $dirPath ) && !file_exists( $subDirPath )){
if (mkdir( $subDirPath )){
return $subDirPath.self::MY_DS ;
} else {
return ‘‘ ;
}
} else {
return $subDirPath.self::MY_DS ;
}
} else {
return ‘‘ ;
}
}else if (!file_exists( $subDirPath )){
if (mkdir( $subDirPath )){
return $subDirPath.self::MY_DS ;
} else {
return ‘‘ ;
}
} else {
return $subDirPath.self::MY_DS ;
}
}
/**
*返回文件路径名,不包括文件名
*/
function getPath(){
return $this->path;
}
/**
*返回文件保存的完整路径
*/
function getFullPath(){
return (substr_compare($this->path,self::MY_DS,0,1) != 0 ? self::MY_DS.$this->path : $this->path).$this->newfilename;
}
/**
*产生新的文件名
*/
function mfilename($name){
$names = explode(".",$name);
$theId = !empty($this->id) ? $this->id.‘_‘ : ‘‘ ;
$this->newfilename= $theId.uniqid(rand()).".".$names[count($names)-1];
}
/**
*返回新的文件名
*/
function getNewFilename(){
return $this->newfilename;
}
/**
*开始上传
*/
function doUpload(){
if($this->vaild()){
if(is_uploaded_file($this->upfile[‘tmp_name‘])){
if($this->dirStyle == 1){
$this->mdir_YM($this->path);
} else if($this->dirStyle == 2) {
$this->mdir_YM_D($this->path);
} else {
//$this->path = substr_compare($this->path,self::MY_DS,0,1) != 0 ? self::MY_DS.$this->path : $this->path ;
}
$this->mfilename($this->upfile[‘name‘]);
if (is_uploaded_file($this->upfile[‘tmp_name‘])){
if(move_uploaded_file($this->upfile[‘tmp_name‘],$this->path.$this->getNewFilename())){
$msg = self::UPLOAD_SECCUSS ;
$this->isSuccess = true;
}else{
$msg = self::UPLOAD_FAILING ;
}
}
} else {
$msg = self::NOT_UPLOAD_FILE ;
}
}else{
$msg = self::UPLOAD_ERRORS. round($this->size/1024) ."KB." ;
}
return $msg ;
}
}
?>
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原文地址：http://www.cnblogs.com/Yue0327/p/5493361.html
