"); if(eregi("--|2|50|\+|substring|from|infor|mation|lv|%20|=|!|<>|sysM|and|or|table|column",$ck)) exit("Access Denied!"); if(eregi(' ',$ck)) { echo('cannot use space'); exit(); } $rand=rand(1,5); if($rand==1) { $result=@mysql_query("select lv from lv1 where lv=($go)") or die("nice try!"); } if($rand==2) { $result=@mysql_query("select lv from lv1 where lv=(($go))") or die("nice try!"); } if($rand==3) { $result=@mysql_query("select lv from lv1 where lv=((($go)))") or die("nice try!"); } if($rand==4) { $result=@mysql_query("select lv from lv1 where lv=(((($go))))") or die("nice try!"); } if($rand==5) { $result=@mysql_query("select lv from lv1 where lv=((((($go)))))") or die("nice try!"); } $data=mysql_fetch_array($result); if(!$data[0]) { echo("query error"); exit(); } if($data[0]!=1 && $data[0]!=2) { exit(); } if($data[0]==1) { echo("
"); echo(""); } if($data[0]==2) { echo("
"); @solve(); } ?>