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<form action="表单提交地址" method="post" enctype="multipart/form-data">
	<input type="file" name="file" />
	<input type="submit" value="上传" />
</form>

if(isset($_FILES['upload'])) {
	if($_FILES['upload']['error'] !== UPLOAD_ERR_OK){
		exit('上传失败!');
	}
	$save = './uploads/' . time() . '.dat';
	if(!move_uploaded_file($_FILES['upload']['tmp_name'], $save)) {
		exit('上传失败,无法将文件保存到指定位置!');
	}
	echo "上传成功!";
}

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