1、前端代码

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>销售数据修改</title>
</head>
<body>
	<div>
		<form enctype='multipart/form-data' id='aa' name='aaa' method='post' action='Platform.php?c=ClarksDataKids&m=uploadFile'> 
			<!-- <input type='hidden' name='MAX_FILE_SIZE' value='2621114' /> --> 
			<input name='file' style="cursor:pointer;" type='file' />
			<input type="submit" style="cursor:pointer;" value="上传修改数据"/>
		</form> 
		
	</div>
</body>
</html>

 2、后端PHP代码

function uploadFile() {
		if (!$_FILES['file']['tmp_name']||!$_FILES['file']['name']){
			echo "<script>alert('请选择要上传的文件！');history.go(-1);location.reload();</script>";
			exit();
		}
		$fileName = basename($_FILES['file']['name']);
		$tempName = $_FILES['file']['tmp_name'];
		
		$date = date("Ymd",time());
		$dir = "/home/wwwroot/erp/FTP/Women/".$date;
		chmod($dir, 0777);	//修改文件权限
		if (!is_dir($dir)){
			mkdir($dir,0777,true);//创建多级目录
			//echo "<script type='text/javascript'>alert('请在有效的时间内执行修改操作！');history.go(-1);location.reload();</script>";
			//exit();
		}
		$newFile = $dir."/".$fileName;
		
		if (is_uploaded_file($_FILES['file']['tmp_name'])){
			$res = move_uploaded_file($_FILES['file']['tmp_name'], iconv("gb2312", "UTF-8", $newFile));
	
			if (!$res){
				echo "<script>alert('上传失败');history.go(-1);location.reload();</script>";
			}else {
				echo "<script>alert('上传成功');history.go(-1);location.reload();</script>";
			}
		}
	
	}