Php5+utf8 multiple file Upload class _php skills

Some functions are not added, such as automatic renaming, image processing and so on. Can be added as needed.


Use:


$up = new Upfile (root_path. ' data/'. Date ("Ym", Time ()), array (' gif ', ' jpg ', ' jpeg '), true);


$fileimg = $up->upload ($_files[' img '))//Returns an array of file names after uploading, $_files[' img '] for uploaded files


You can use $up->log to view information when uploading.


<?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 with the same name


Private $maxSize = 0; # file maximum byte, no limit size when 0


Private $ext;


Private $errno = 0;


/* Constructor


* (String) $savePath file save path, default to $attachment_path


* (array) $extensionFileFormat the extension of the custom upload file, not set to $imagefileformat | | $OtherFileFormat


* (BOOL) $overwrite whether to overwrite files with 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) $files an array of files to be uploaded $_files[' attach ']


* (number) $maxSize file maximum bytes, default to 0 unlimited 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 list of files to be uploaded is empty. \ n ";


return Array ();


}


if (!self::makedirectory () | |! @is_writable ($this->savepath)) {


$this->log. = $this->savepath. "cannot be created or its permissions are not writable." \ n ";


return Array ();


}


$filearray = Array ();


foreach ($this->filelist as $k => $f) {


if ($this->maxsize && $f [' Size ']> $this->maxsize) {


$this->log. = $f [' name ']. "Its 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 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 you do not encode the conversion, Chinese will not be able to support


$this->log. = $f [' name ']. "Successfully uploaded to directory:". $this->savepath. " \ n ";


$filearray [$k] = $this->savepath. $f [' name '];


}else{


$this->log. = $f [' name ']. "Upload failed. \ n ";


}


}


}


return $filearray;


}


/* The type of the detection file


* (array) $files Arrays of files


*/


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)!== ' CWS ' | | 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 conform to the type of upload file. \ n ";


@unlink ($file [' tmp_name ']);


}


}


}


}


/* Generate 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;


};


}


}


?>