<?php if($_POST['submit']) { if ($_POST['acht'] = 'sro1') {$zzz = '1';} if ($_POST['acht'] = 'sro2') {$zzz = '2';} if ($_POST['acht'] = 'sro3') {$zzz = '3';} echo $zzz; ?> <form action="" method=post> <select size="3" id="List1" name="acht"> <option value="sro1"> 1 </option> <option value="sro2"> 2 </option> <option value="sro3"> 3 </option> </select> <input type="submit" value="OK" name="submit"> </form>