aca esta bn el codigo .....
<?php
$link=mysql_connect("localhost","root","");
mysql_select_db("contratacion",$link);
$sqls = "Select * from otro_si";
$sqls_ts = mysql_query($sqls,$link) or die(" Consulta fallida ".mysql_error($link));
$consul =" SELECT tip_contrato FROM otro_si " ;
$res=mysql_query($consul)or die(" Consulta fallida ".mysql_error($link));;
while($preg=mysql_fetch_assoc($res)){
?>
<p>
<input type="radio" name="radiobutton1" value="<?php echo $preg['tip_contrato'];?>">
<p>
<?php
}
?>