for($p=0;$p<$counts;$p++){
$cost="key_cost_".$p;
$countSqls="SELECT count(*) as rcnt2 FROM `lj_drilltestresult` WHERE test_id='".$drilltestID[$p]."'";
$counts=mysql_query($countSqls,$connect);
$datas=mysql_fetch_array($counts);
$countf=$datas["rcnt2"];
if($p==$counts-1){
for($u=0;$u<$countf;$u++){
$tt.=$cost[$u]."、";
}
$key_cost.=$tt;
}else{
for($u=0;$u<$countf;$u++){
$tt.=$cost[$u]."、";
}
$key_cost.=$tt."|";
}
}
请帮我看一下那里错了，怎么会是死循环？