php 音频和视频文件怎么上传到服务器的指定位置?

php代码
<?php
header('Content-Type:text/html; charset=utf-8');
$origin=$_FILES['myfile']['tmp_name'];
$name=$_FILES['myfile']['name'];
$path='./upload/';
echo $name;
if(is_uploaded_file($origin)){
if(move_uploaded_file($origin,$path. $name)){
//这就算上传成功了，插入数据库
if (!$link = mysql_connect('localhost', 'root', '18197')) {
echo '数据库连接失败！';
exit;
}
if (!mysql_select_db('upload', $link)) {
echo '数据库不存在！';
exit;
}
$timestamp=time();
$sql="INSERT INTO file (filename,filesize,time)values ('{$_FILES['myfile']['name']}','{$_FILES['myfile']['size']}','$timestamp')";
}
else{
echo "上传失败";
}
}
else{
echo "文件读取失败";
}
?>

html代码
<form action="index.php" method="post" enctype="multipart/form-data" >
<input type="file" name="myfile" id="">
<input type="submit" value="提交">
</form>