PHP5 + UTF8 multi-File Upload class

Some features are not added, such as automatic renaming and image processing. You can add them as needed.
USE:
$ Up = new upfile (ROOT_PATH. 'Data /'. date ("Ym", time (), array ('gif', 'jpg ', 'jpeg'), true );
$ Fileimg = $ up-> upload ($ _ FILES ['img ']); // returns the array of uploaded file names. $ _ FILES ['img'] indicates the uploaded file.
You can use $ up-> log to view the uploaded information.
<? Php
// ================================================ ====================
// FileName: upfile. class. php
// Summary: File Upload class
// Author: millken (lost Lincoln)
// LastModifed: 2008-6-4
// Copyright (c) 2008 millken@gmail.com
// ================================================ ====================
If (! Defined ('OK') exit (_ FILE _. 'Access Denied ');
Class upfile {
Public $ ExtensionFileFormat = array ();
Public $ returninfo = array ();
Private $ ImageFileFormat = array ('gif', 'bmp ', 'jpg', 'jpe ', 'jpeg', 'png ');
Private $ OtherFileFormat = array ('zip ', 'pdf', 'rar ', 'xls', 'Doc', 'ppt ', 'csv ');
Private $ savePath;
Private $ attachment_path = './upfiles /';
Private $ overwrite = false; # Whether to overwrite data with the same name
Private $ maxSize = 0; # maximum file size. If the value is 0, no size limit is imposed.
Private $ ext;
Private $ errno = 0;
/* Constructor
* (String) $ save path of the savePath file. The default value is $ attachment_path.
* (Array) $ extensionFileFormat: Customize the extension of the uploaded file. If not set, $ ImageFileFormat | $ OtherFileFormat
* (Bool) $ overwrite indicates whether to overwrite files of the same name
*/
Public function _ construct ($ savePath = '', $ extensionFileFormat = array (), $ overwrite = false ){
$ This-> savePath = empty ($ savePath )? $ This-> attachment_pathsavePath .'/';
$ This-> extensionFileFormat = is_array ($ extensionFileFormat )? $ ExtensionFileFormat: array ();
$ This-> overwrite = is_bool ($ overwrite )? $ Overwrite: false;
}
/* Upload function
* (Array) $ array of files to be uploaded $ _ FILES ['Attach ']
* (Number) $ maximum number of bytes of the maxSize file. The default value is 0, which does not limit the upload size.
*/
Public function upload ($ files, $ maxSize = 0 ){
$ This-> maxSize = is_numeric ($ maxSize )? $ MaxSize: 0;
If (isset ($ files) & is_array ($ files )){
If (is_array ($ files ['name']) {
Foreach ($ files as $ key => $ var ){
Foreach ($ var as $ id => $ val ){
$ Attachments [$ id] [$ key] = $ val;
}
}
} Else {
$ Attachments [] = $ files;
}
}
Self: check_file_type ($ attachments );
If (empty ($ this-> filelist )){
$ This-> log. = "the file list to be uploaded is empty. \ N ";
Return array ();
}
If (! Self: makeDirectory () |! @ Is_writable ($ this-> savePath )){
$ This-> log. = $ this-> savePath. "cannot be created or its permission is not writable. \ N ";
Return array ();
}
$ Filearray = array ();
Foreach ($ this-> filelist as $ k => $ f ){
If ($ this-> maxSize & $ f ['SIZE']> $ this-> maxSize ){
$ This-> log. = $ f ['name']. "The size exceeds the set value:". $ this-> maxSize. "\ n ";
} Elseif ($ this-> overwrite = false & file_exists ($ this-> savePath. $ f ['name']) {
$ This-> log. = $ f ['name']. "already exists in the directory:". $ this-> savePath. "\ n ";
} Else {
@ Unlink ($ this-> savePath. $ f ['name']);
If (@ move_uploaded_file ($ f ['tmp _ name'], $ this-> savePath. mb_convert_encoding ($ f ['name'], 'gbk', 'utf-8') {// if no encoding conversion is performed, Chinese characters cannot be supported.
$ This-> log. = $ f ['name']. "successfully uploaded to the directory:". $ this-> savePath. "\ n ";
$ Filearray [$ k] = $ this-> savePath. $ f ['name'];
} Else {
$ This-> log. = $ f ['name']. "Upload Failed. \ N ";
}
}
}
Return $ filearray;
}
/* Check the file type
* (Array) $ files file array
*/
Private function check_file_type ($ files ){
$ This-> filelist = array ();
Foreach ($ files as $ key => $ file ){
If ($ file ['error'] = 0 ){
$ Ext = strtolower (substr ($ file ['name'], strrpos ($ file ['name'], '.') + 1 ));
$ Str = @ file_get_contents ($ file ['tmp _ name'], FALSE, NULL, 0, 20 );
If (in_array ($ ext, array ('jpg ', 'jpeg') & substr ($ str, 0, 3 )! = "\ XFF \ xD8 \ xFF") | ($ ext = 'gif' & substr ($ str, 0, 4 )! = 'Gif8') | ($ ext = 'png '& substr ($ str, 0, 8 )! = "\ X89 \ x50 \ x4E \ x47 \ x0D \ x0A \ x1A \ x0A") | ($ ext = 'bmp '& substr ($ str, 0, 2 )! = 'Bm ') | ($ ext = 'swf' & (substr ($ str, 0, 3 )! = 'Done' | substr ($ str, 0, 3 )! = 'Fws ') | ($ ext = 'zip' & substr ($ str, 0, 4 )! = "PK \ x03 \ x04") | ($ ext = 'rar '& substr ($ str, 0, 4 )! = 'Rar! ') | ($ Ext = 'pdf' & substr ($ str, 0, 4 )! = "\ X25PDF") | ($ ext = 'chm' & substr ($ str, 0, 4 )! = 'Itsf ') | ($ ext = 'rm' & substr ($ str, 0, 4 )! = "\ X2ERMF") | ($ ext = 'exe '& substr ($ str, 0, 2 )! = "MZ") | (in_array ($ ext, array ('Doc', 'xls ', 'ppt') & substr ($ str, 0, 4 )! = "\ XD0 \ xCF \ x11 \ xE0 ")){
$ This-> log. = $ file ['name']. "The file type does not match the file content. \ N ";
} Elseif ((! Empty ($ this-> extensionFileFormat) & in_array ($ ext, $ this-> extensionFileFormat) | (empty ($ this-> extensionFileFormat) & (in_array ($ ext, $ this-> ImageFileFormat) | in_array ($ ext, $ this-> OtherFileFormat )))){
$ This-> filelist [$ key] = $ file;
} Else {
$ This-> log. = $ file ['name']. "does not match the type of the uploaded file. \ N ";
@ Unlink ($ file ['tmp _ name']);
}
}
}
}
/* Generate the upload directory
*
*/
Private function makeDirectory (){
$ DirectoryName = str_replace ("\", "/", $ this-> savePath );
$ DirNames = explode ('/', $ directoryName );
$ Total = count ($ dirNames );
$ Temp = '';
For ($ I = 0; $ I <$ total; $ I ++)
{
$ Temp. = $ dirNames [$ I]. '/';
If (! Is_dir ($ temp ))
{
$ Oldmask = @ umask (0 );
If (! @ Mkdir ($ temp, 0777) return false;
@ Umask ($ oldmask );
}
};
If (is_dir ($ this-> savePath )){
Return true;
} Else {
Return false;
};
}
}
?>