php 多文件上传经典代码
<?php
require_once("include/upload.class.php");
if($_POST["button"])
{
//print_r($_FILES);
//多个上传
//$upload = new TTRUpload($_FILES,"ANY");//同下
$upload = new TTRUpload(array($_FILES["file1"],$_FILES["file2"],$_FILES["file3"],$_FILES["file4"]),"ANY");
//单个上传
//$upload = new TTRUpload($_FILES["file1"]);
$upload->upload();
echo $upload->getUploadFileName();
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<body>
<form action="" method="post" enctype="multipart/form-data" name="form1" id="form1">
<input type="file" name="file1" id="file1" />
<br />
<input type="file" name="file2" id="file2" />
<br />
<input type="file" name="file3" id="file3" />
<br />
<input type="file" name="file4" id="file4" />
<br />
<input type="submit" name="button" id="button" value="Submit" />
</form>
</body>
</html>
<?php
class TTRUpload extends Error
{
const filesize=81200000;
private $uploadpath="uploadfile/";
private $savepath=null;
private $uploadfilename=null; //单个文件为文件名，批量文件为xxxx|xxxx格式，请注意
private $ext=array("jpg","gif","png");
private $error=null;
private $file=null;
private $uploadtype=null;
private $filename=null;
//构造函数，$type:ONE单个上传 ANY批量上传;
public function __construct($file,$type="ONE")
{
if($type!="ONE" && $type!="ANY")
{
echo "<script language='javascript'>alert('初始化请选择ONE或者ANY')</script>";
exit;
}
$this->uploadtype=$type;
$this->file=$file;
}
private function createFileName()
{
return $this->filename="TTR_".time().$this->getRandomN(4);
}
private function getUploadPath()
{
if(substr($this->uploadpath,-1,1)!="/")
{
$this->savepath=$this->uploadpath."/".date("Ym");
}else{
$this->savepath=$this->uploadpath.date("Ym");
}
$this->savepath=$this->getFolder($this->savepath);
return true;
}
private function getFileExt($tempfilename)
{
return end(explode(".",$tempfilename));
}
private function getExt()
{
if(in_array(strtolower($this->getFileExt($tempfilename)),$this->ext))
{
return true;
}else{
return false;
}
}
private function getFolder($folder)
{
if(!is_dir($folder))
{
mkdir($folder);
}
return $folder."/";
}
public function upload()
{
if($this->uploadtype=="ONE")
{
if($this->getExt($this->file["type"]))
{
parent::errorExt();
}else if($this->file["size"]>self::filesize){
parent::errorFileSize();
}else if(!$this->getUploadPath()){
parent::errorUploadPath();
}else{
$filenametemp=$this->createFileName();
$filename=$this->savepath.$filenametemp.".".$this->getFileExt($this->file["name"]);
if(move_uploaded_file($this->file["tmp_name"],$filename))
{
$this->uploadfilename=$filenametemp;
parent::okMoved();
}else{
parent::errorMoveUpload();
}
}
}else if($this->uploadtype=="ANY"){
for($i=0;$i<count($this->file);$i++)
{
if($this->getExt($this->file[$i]["type"]))
{
parent::errorExt();
}else if($this->file[$i]["size"]>self::filesize){
parent::errorFileSize();
}else if(!$this->getUploadPath()){
parent::errorUploadPath();
}else{
$filenametemp=$this->createFileName();
$filename=$this->savepath.$filenametemp.".".$this->getFileExt($this->file[$i]["name"]);
if(move_uploaded_file($this->file[$i]["tmp_name"],$filename))
{
$str.=$filenametemp."|";
}else{
parent::errorMoveUpload();
}
}
}
$this->uploadfilename=substr($str,0,strlen($str)-1);
parent::okMoved();
}
}
public function getUploadFileName()
{
return $this->uploadfilename;
}
public function setUploadPath($path)
{
$this->uploadpath=$path;
}
private function getRandomN($n)
{
if ($n < 1 || $n>10) return "";
$ary_num= array(0,1,2,3,4,5,6,7,8,9);
$return ="";
for ($i=0;$i<$n;$i++)
{
$randn = rand(0,9-$i);
$return .= $ary_num[$randn];
$ary_num[$randn] = $ary_num[9-$i];
}
return $return;
}
public function __destruct()
{
$this->uploadfilename=null;
$this->uploadtype=null;
$this->file=null;
$this->savepath=null;
}
}
class Error
{
public static function errorFileSize()
{
echo "超出最大上传限制";
}
public static function errorExt()
{
echo "此类文件不允许上传";
}
public static function errorUploadPath()
{
echo "上传路径不正确";
}
public static function errorMoveUpload()
{
echo "上传失败";
}
public static function okMoved()
{
echo "上传成功！";
}
public static function okArrayMoved()
{
echo "上传成功！";
}
}
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