I have few drop down boxes from where I can get an id of a category. For example, from drop down box 1, i get `$cat1`, from box 2 i get `$cat2` and so on.

Then I want to get the entries from db for each of the cat id. Currently I am repeating same code for each of the variable, like:

```
<?
$cat1 = 1;
$cat2 = 3;
$cat3 = 4;
$cat4 = 8;

<? if ($var1 != ""){ ?> 
    <div>
        Entries for <? echo $var1; ?>           
        ..
    </div>
<? } ?>

<? if ($var2 != ""){ ?> 
    <div>
        Entries for <? echo $var2; ?>
        ..
    </div>
<? } ?>

<? if ($var3 != ""){ ?> 
    <div>
        Entries for <? echo $var3; ?>
        ..
    </div>
<? } ?>

```

I'd like to know if I can use a loop and avoid writing code for each variable.