PHP5+UTF8多檔案上傳類

還有些功能沒有加上去,如自動更名,圖片處理等.可依需要自行添加.
USE:
$up = new upfile(ROOT_PATH.'data/'.date("Ym" ,time()),array('gif','jpg','jpeg'),true);
$fileimg = $up->upload($_FILES['img']);//返回上傳後檔案名稱數組,$_FILES['img']為上傳的檔案
可使用$up->log查看上傳時資訊.
//========= ===========================================
// FileName: upfile.class.php
// Summary: 檔案上傳類別
// Author: millken(迷路林肯)
// 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; # 同名時是否覆蓋
private $maxSize = 0; # 檔案最大字節，為0時不限制大小
private $ext;
private $errno = 0;
/* 建構子
* (string)$savePath 檔案儲存路徑，預設為$attachment_path
* (array)$extensionFileFormat 自訂上傳檔案的副檔名，未設定時為$ImageFileFormat || $OtherFileFormat
* (bool)$overwrite 是否覆寫同名檔案
*/
public function __construct($savePath='',$extensionFileFormat = array(),$overwrite = false) {
$this->savePath = empty($savePath)?$this->attachment_pathsavePath.'/';
$this->extensionFileFormat = is_array($extensionFileFormat)?$extensionFileFormat:arraFormat = is_array($extensionFileFormat)?$extensionFileFormat:array(); >$this->overwrite = is_bool($overwrite)?$overwrite:false;
}
/*上傳函數
* (array)$files 待上傳的檔案陣列$_FILES['attach']
* (number)$maxSize 檔案的最大位元組數，預設為0不限制上傳大小
*/
public function upload($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(py(ty()) $this->filelist)) {
$this->log .= "待上傳的檔案清單為空。 n";
return array();
}
if(!self::makeDirectory() || !@is_writable($this->savePath)) {
$this->log . = $this->savePath . "不能建立或其權限為不可寫。 n";
return array();
}
$filearray = array();
foreach($this->filelist as $k=>$f) {
if($ this->maxSize && $f['size']>$this->maxSize) {
$this->log .= $f['name'] . "其大小超過了設定的值：" . $this->maxSize ."n";
}elseif($this->overwrite == false && file_exists($this->savePath . $f['name'])) {
$this-> log .= $f['name'] . "已經存在於目錄：" . $this->savePath . "n";
}else{
@unlink($this->savePath . $f[ 'name']);
if(@move_uploaded_file($f['tmp_name'],$this->savePath . mb_convert_encoding($f['name'],'gbk','utf-8'))) {//如果不進行編碼轉換，中文將無法支援
$this->log .= $f['name'] . "成功上傳到目錄：". $this->savePath ."n";
$filearray[$k] = $this->savePath . $f['name'];
}else{
$this->log .= $f['name'] . "上傳失敗。 n";
}
}
}
return $filearray;
}
/*偵測檔案的型別
*(array)$files 檔案陣列
* /
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 .= $file['name'] . "檔案類型與檔案內容不符合。n";
}elseif((!empty($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; ->log .= $ file['name'] . "不符合上傳檔案的型別。n"
@unlink($file['tmp_name'])
}
}
}
}
/*產生上傳目錄
*
*/
private function makeDirectory() {
$directoryName = str_replace("\", "/", $this->savePath );
$ dirNames =explode('/', $directoryName);
$total = count($dirNames);
$temp = ''; {
$temp . = $dirNames[$i].'/'
if (!is_dir($temp) ))
{
$ oldmask = @umask(0);
if (!@mkdir($ temp, 0777)) 回傳false
@umask($oldmask)
}
}; >savePath)) {
回傳true
} else {
回傳false >
？
以上就介紹了PHP5+UTF8多文件上傳類，包括了方面的內容，希望對PHP教程有興趣的朋友有所幫助。