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自定义MVC框架之工具类-文件上传类

2018-06-22 05:36:13来源：未知阅读 ()

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自定义MVC框架之工具类-分页类的封装

该文件上传类功能如下：

1，允许定制上传的文件类型，文件mime信息，文件大小

2，自由定制文件名是随机还是保持原来的文件名

3，谨慎的检查，友好的错误提示，精确定位文件上传哪一步出问题

测试结果：

ghostwu@ghostwu:~/php/senior_php/upload$ tree
.
├── 19502QV8-6.jpg
├── Upload
│   ├── ghostwu_5a94beb3b2690.jpg
│   ├── ghostwu_5a94c727a1f1a.php
│   └── ghostwu_5a94c740615dc.html
├── upload.html
└── upload.php

upload.php:

  1 <meta charset="utf-8" />
  2 <?php
  3     
  4 class Upload {
  5     //上传路径
  6     private $path = './Upload';
  7     //允许的文件类型
  8     private $allowFileType = [ 'jpg', 'png', 'jpeg', 'wbmp', 'gif' ];
  9     //允许的mime信息
 10     private $allowMime = [ 'image/jpeg', 'image/gif', 'image/png', 'image/wbmp' ];
 11     //允许的最大文件大小
 12     private $maxSize = 2048000;
 13     //运行随机文件名
 14     private $enableRandName = true;
 15     //文件前缀
 16     private $prefix = 'ghostwu_';
 17 
 18     //错误号
 19     private $errorNo;
 20     //错误信息
 21     private $errorInfo;
 22     
 23     //文件原来的名称
 24     private $originName;
 25     //新的文件名称
 26     private $newName;
 27     //文件后缀
 28     private $suffix;
 29     //文件大小
 30     private $size;
 31     //文件mime信息
 32     private $mime;
 33     //临时文件名
 34     private $tmpName;
 35 
 36 
 37     public function __construct( $fileInfo = [] ){
 38         foreach ($fileInfo as $k => $v ) {
 39             $this->setProperty( $k, $v );
 40         }
 41     }
 42 
 43     //设置成员属性
 44     public function setProperty( $k, $v ){
 45         $property = array_keys( get_class_vars( __CLASS__ ) );
 46         if( in_array( $k, $property ) ){
 47             $this->$k = $v;
 48         }
 49     }    
 50 
 51     public function __get( $key ) {
 52         if( $key == 'errorNo' ) {
 53             return $this->errorNo;
 54         }else if ( $key == 'errorInfo' ) {
 55             return $this->getErrorInfo();
 56         }
 57     }
 58 
 59     protected function getErrorInfo(){
 60         $info = '';
 61         switch( $this->errorNo ){
 62             case 1000:
 63                 $info = '没有设置上传路径';
 64                 break;
 65             case 1001:
 66                 $info = '上传路径不存在，或者没有写权限';
 67                 break;
 68             case 1002:
 69                 $info = '文件大小超过限制';    
 70                 break;
 71             case 1003:
 72                 $info = '文件的mime信息不在允许范围内';
 73                 break;
 74             case 1004:
 75                 $info = '不允许上传这种类型的文件';
 76                 break;
 77             case 1006:
 78                 $info = '文件不是通过表单上传的';
 79                 break;
 80             case 1007:
 81                 $info = '文件移动失败';
 82                 break;
 83             case 1:
 84                 $info = '文件超出php.ini设置的大小';
 85                 break;
 86             case 2:
 87                 $info = '超出html表单设置的大小';
 88                 break;
 89             case 3:
 90                 $info = '文件只有部分被上传';
 91                 break;
 92             case 4:
 93                 $info = '没有文件被上传';
 94                 break;
 95             case 6:
 96                 $info = '找不到临时文件';
 97                 break;
 98             case 7:
 99                 $info = '文件写入失败';
100                 break;
101         }
102 
103         return $info;
104     }
105 
106     protected function check(){
107         if( !file_exists( $this->path ) || !is_dir( $this->path ) ){
108             return mkdir( $this->path, 0777, true );
109         }
110         if( !is_writable( $this->path ) ){
111             return chmod( $this->path, 0777 );
112         }
113         return true;
114     }
115 
116     public function upload( $name ){
117         //判断是否设置了上传路径
118         if( empty( $this->path ) ) {
119             $this->setProperty( 'errorNo', 1000 );
120             return false;
121         }
122         //判断路径是否存在，可写
123         if( !$this->check() ) {
124             $this->setProperty( 'errorNo', 1001 );
125             return false;
126         }
127         //判断上传文件是否错误，提取原文件信息
128         $errorno = $_FILES[$name]['error'];
129         if( $errorno ) {
130             $this->setProperty( 'errorNo', $errorno );
131             return false;
132         }else {
133             $this->getFileInfo( $name );
134         }
135         //判断文件是否符合上传要求(大小,后缀,mime)
136         if( !$this->checkSize() 
137             || !$this->checkMime()
138             || !$this->checkSuffix() ) {
139             return false;
140         }
141         //生成新的文件名
142         $this->newName = $this->createNewName();
143         //判断是否为上传文件
144         if( is_uploaded_file( $this->tmpName ) ) {
145             if( move_uploaded_file( $this->tmpName, $this->path . '/' . $this->newName ) ){
146                 return $this->path . '/' . $this->newName;
147             }else {
148                 $this->setProperty( 'errorNo', 1007 );
149                 return false;
150             }
151         }else {
152             $this->setProperty( 'errorNo', 1006 );
153             return false;
154         }
155     }
156 
157     protected function createNewName(){
158         if ( $this->enableRandName ) {
159             $name = $this->prefix . uniqid() . '.' . $this->suffix;
160         }else {
161             $name = $this->prefix . $this->originName;
162         }
163         return $name;
164     }
165 
166     protected function getFileInfo( $name ){
167         $this->originName = $_FILES[$name]['name'];
168         $this->mime = $_FILES[$name]['type'];
169         print_r( $this->mime );
170         $this->tmpName = $_FILES[$name]['tmp_name'];    
171         $this->size = $_FILES[$name]['size'];
172         $this->suffix = pathinfo( $this->originName )['extension'];
173     }
174 
175     protected function checkSize(){
176         if( $this->size > $this->maxSize ) {
177             $this->setProperty( 'errorNo', 1002 );
178             return false;
179         }
180         return true;
181     }
182 
183     protected function checkMime(){
184             print_r( $this->allowMime );
185         if( !in_array( $this->mime, $this->allowMime ) ) {
186             $this->setProperty( 'errorNo', 1003 );
187             return false;
188         }
189         return true;
190     }
191 
192     protected function checkSuffix(){
193         if( !in_array( $this->suffix, $this->allowFileType ) ) {
194             $this->setProperty( 'errorNo', 1004 );
195             return false;
196         }
197         return true;
198     }
199 
200 }
201 
202 $upload = new Upload( [ 'maxSize' => 204800 ] );
203 $upload->setProperty( 'allowFileType', ['jpg','jpeg', 'gif', 'php', 'html'] );
204 $upload->setProperty( 'allowMime', [ 'image/jpeg', 'image/gif', 'image/wbmp', 'application/x-php', 'text/html'  ] );
205 
206 $upload->upload( 'photo' );
207 
208 echo $upload->errorNo . '<br/>';
209 echo $upload->errorInfo . '<br/>';
210 
211 ?>

View Code

upload.html

 1 <!DOCTYPE html>
 2 <html>
 3         <head>
 4                 <meta charset="utf-8" />
 5                 <meta name="viewport" content="width=device-width" />
 6                 <title>文件上传-by ghostwu</title>
 7         </head>
 8         <body>
 9             <form action="upload.php" method="post" enctype="multipart/form-data" >
10                 <input type="file" name="photo" id="photo" />    
11                 <input type="submit" name="upload" id="upload" value="上传" />
12             </form>
13         </body>
14 </html>