PHP5+UTF8 multiple file upload class

There are still some functions that have not been added, such as automatic name change, image processing, etc. You can add them yourself as needed.
USE:
$up = new upfile(ROOT_PATH.'data/'.date("Ym",time()), array('gif','jpg','jpeg'),true);
$fileimg = $up->upload($_FILES['img']);//Return the array of uploaded file names, $_FILES[ 'img'] is the uploaded file
You can use $up->log to view the upload information.
//==================== ================================
// 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 the same name
private $maxSize = 0; # The maximum byte size of the file, if it is 0, there is no size limit
private $ ext;
private $errno = 0;
/* Constructor
* (string)$savePath File saving path, default is $attachment_path
* (array)$extensionFileFormat Customize the extension of the uploaded file, if not set, it is $ImageFileFormat || $OtherFileFormat
* (bool)$overwrite Whether to overwrite the file 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 Array of files to be uploaded$_FILES['attach']
* (number)$maxSize The maximum number of bytes of the file, default is 0 No limit on 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 create 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'] . "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 will not be supported
$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 $filearray;
}
/*Detect the type of file
*(array)$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) !== "xFFxD8xFF") || ($ext == 'gif' && substr($str ,0, 4) !== 'GIF8') || ($ext == 'png' && substr($str ,0, 8) !== "x89x50x4Ex47x0Dx0Ax1Ax0A") || ($ext == 'bmp' && substr($ str ,0, 2) !== 'BM') || ($ext == 'swf' && (substr($str ,0, 3) !== 'CWS' || substr($str ,0, 3 ) !== 'FWS')) || ($ext == 'zip' && substr($str ,0, 4) !== "PKx03x04") || ($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) !== "xD0xCFx11xE0")) {
$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 .= $file['name'] . "不符合上传文件的类型。n";
@unlink($file['tmp_name']);
}
}
}
}
/*生成上传目录
*
*/
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;
};
}
}
?>

以上就介绍了 PHP5+UTF8多文件上传类，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。