php 多文件上传经典代码_PHP教程

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();
}
?>

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 "";
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)!="//m.sbmmt.com/m/")
{
$this->savepath=$this->uploadpath."//m.sbmmt.com/m/".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."//m.sbmmt.com/m/";
}


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($i=0;$ifile);$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 10) return "";

$ary_num= array(0,1,2,3,4,5,6,7,8,9);
$return ="";
for ($i=0;$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！";
}
}