//photo.php文件内容:
<form action="input_photo.php" method="post" enctype="multipart/form-data">
<input name="formdata"  type="file"  >
<input name="提交" type="submit" value=" 提 交 ">
</form>

//input_photo.php

<?

import_request_variables("gp","add_");
echo filetype($add_formdata);
echo filesize($formdata);
print_r($_POST);

?>

提示错误:
Warning: filetype() [function.filetype]: Lstat failed for Array in D:\shanghaicc\test\input_photo.php on line 4
Array ( [提交] => 提 交 )


请问怎么解决?