php上传文件分类实例代码

废话不多说了，直接给大家贴代码了，具体代码如下所示：

getExt($filename);
return in_array($ext,$this->allowExt);
}

public function checkSize($size){
return $size < $this->maxSize * 1024 * 1024;
}

public function randName($len=6){
return substr(str_shuffle('abcdefghjkmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ234565789'),0,$len);
}
 
public function createDir(){
//上传文件路径
$dir = './upload/'.date('Y/m/d',time());
//判断文件夹是否存在，不存在则新建
if(is_dir($dir) || mkdir($dir,0777,true)){
return $dir;
}
}

public function uploadFile($flag){
if($_FILES[$flag]['name'] === '' || $_FILES[$flag]['error'] !== 0){
echo "没有上传文件";
return;
}
$info = $this->getInfo($flag);
if(!$this->checkExt($info['name'])){
echo "不支持的文件类型";
return;
}
if(!$this->checkSize($info['size'])){
echo "文件大小超过限制";
return;
}
$filename = $this->randName().'.'.$this->getExt($info['name']);
$dir = $this->createDir();
if(!move_uploaded_file($info['tmp_name'], $dir.'/'.$filename)){
echo "文件上传失败";
}else{
return array('filename'=>$filename,'dir'=>$dir);
}
}
}
?>