1 class Upload {
2 protected $allowext = array('jpg','bmp','gif','png','jpeg');//允许的上传
3 protected $file = array();//记录上传文件的信息
4 protected $maxsize = 1;//设置最大的上传大小
5 protected $erron = 0;//获取当前的错误错误号码
6
7 //erron 数组图
8 protected $error = array(
9 0 => '上传成功',
10 1 => '文件超出PHP.ini的uploade_max_filesize',
11 2 => '文件超出了HTML表单中设置的MAX_FILE_SIZE的最大值',
12 3 => '文件只有部分被上传',
13 4 => '没有文件被上传',
14 5 => '找不到临时的文件夹',
15 6 => '文件写入失败',
16 7 => '不支持的文件格式上传',
17 8 => '超过网站大小限制',
18 9 => '未知错....'
19 );
20
21 /*获取上传文件的后缀*/
22 public function getExt(){
23 if(!$ext =strtolower(strrchr($this->file['oldname'], '.'))){
24 return false;
25 }else{
26 return $ext;
27 }
28 }
29
30 /*产生四个随机字符*/
31 public function randStr($num=4){
32 $str = 'QWERTYUIPASDFGHJKMNBVCXZqwertyuipasdfghjkmnbvcxz123456789';
33 return $str = substr(str_shuffle($str), 0,$num);
34 }
35
36 /*递归的创建目录*/
37 public function createDir(){
38 $path = 'upload/'.date('Y/md');
39 if(is_dir($path)){
40 return $path;
41 }else{
42 mkdir($path,0777,true);
43 }
44 return $path;
45 }
46
47 /*过滤文件类型*/
48 public function fileType(){
49 if(!in_array(substr($this->file['type'],6), $this->allowext)){
50 $this->erron =7;
51 return false;
52 }
53 return true;
54 }
55 /*过滤大小*/
56 public function fileSize(){
57 if($this->file['size']>=$this->maxsize*1000*1000){
58 $this->erron = 8;
59 return false;
60 }
61 return true;
62
63 }
64
65 /*开始上传*/
66 public function fUpload($name){
67 $arr = array();
68 $this->erron = $_FILES[$name]['error'];
69 if($this->erron>0){
70 echo $this->error[$this->erron];
71 return false;
72 }
73 $this->file['oldname'] = $_FILES[$name]['name'];
74 $this->file['tmp_name'] = $_FILES[$name]['tmp_name'];
75 $this->file ['type'] = $_FILES[$name]['type'];
76 $this->file['size'] = $_FILES[$name]['size'];
77 $this->file['ext'] = $this->getExt();
78 $this->file['name'] = $this->randStr().$this->getExt();
79
80
81 if(!$this->fileType()){
82 echo $this->error[$this->erron];
83 return false;
84 }
85
86 if(!$this->fileSize()){
87 echo $this->error[$this->erron];
88 return false;
89 }
90
91
92 $path = $this->createDir().'/'.$this->file['name'];
93
94
95 move_uploaded_file($this->file['tmp_name'], $path);
96 echo $this->error[$this->erron];
97 $arr['path'] = $path;
98 $arr['oldname'] = $this->file['oldname'];
99 $arr['size'] = $this->file['size'];
100 $arr['name'] = $this ->file['name'];
101
102 return $arr;
103
104 }
105
106
107
108 }
