<form action="" enctype="multipart/form-data" method="post">
<input type="file" name="image" /> <br>
<input type="submit" value="上传" />
</form>
<form action="" enctype="multipart/form-data" method="post">
<input type="file" name="image[]" /> <br>
<input type="file" name="image[]" /> <br>
<input type="file" name="image[]" /> <br>
<input type="submit" value="上传" />
</form>