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class upload{
private $savedir="./";
private $field='new';
private $allowed=array('.jpg','.jpeg','.gif','.png','.bmp','.rar','.zip','.pdf','.swf');
private $max =2097152;//单位（字节）
public $error = '';
public $newname =array();
function __construct($dir,$fieldname,$type='single'){
//var_dump($_files);
if(!empty($fieldname)){$this->field=$fieldname;}
//$c = count($_files[$this->field]['tmp_name']);
//echo $c;
if(!empty($dir)){$this->savedir=$dir;}
if($type!='single'){$this->uploadbygroup();
}else{
$this->uploadbysingle();
}
//print_r($array);
}
private function uploadbygroup(){
$array = array();
foreach($_files[$this->field]['tmp_name'] as $k=>$v){
$file_ext = strtolower(strrchr($_files[$this->field]["name"][$k], "."));
$file_size = $_files[$this->field]['size'][$k];
if($this->isallowedtype($file_ext)&&$this->issizeallowed($file_size)){
$file_name = time().$this->field.$k;
move_uploaded_file($_files[$this->field]["tmp_name"][$k], $this->savedir.$file_name.$file_ext);
$array[] = $file_name.$file_ext;
}else{
$this->error = 'file type not allowed or file is too big!';
return false;
}
}
$this->newname = $array;
}
private function uploadbysingle(){
//var_dump($_files);
$array = array();
$file_ext = strtolower(strrchr($_files[$this->field]["name"], "."));
$file_size = $_files[$this->field]['size'];
if($this->isallowedtype($file_ext)&&$this->issizeallowed($file_size)){
// $fileprename = substr($_files[$this->field]['name'][$k],0,-strlen($file_ext));//比如原来是22.jpg那就获取22
//$file_name = time().$fileprename;
$file_name = time().$this->field;
move_uploaded_file($_files[$this->field]["tmp_name"], $this->savedir.$file_name.$file_ext);
$array[] = $file_name.$file_ext;
}else{
$this->error = 'file type not allowed or file is too big!';
return false;
}
$this->newname = $array;
//print_r($this->newname);
}
function getnewname(){
return $this->newname;
}
function isallowedtype($type){
return in_array($type,$this->allowed) ? true : false;
}
function issizeallowed($size){
return $size < $this->max ? true :false;
}
function geterror(){
return $this->error;
}
}
?>
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