<?php if ($_POST['genero']=="Masculino"){ $checked1 = (isset($_REQUEST['genero']))?" checked":""; } echo '<input type="radio" name="genero"'.$checked1.' value="Masculino" />'; ?> <?php if ($_POST['genero']=="Femenino"){ $checked = (isset($_REQUEST['genero']))?" checked":""; } echo '<input type="radio" name="genero"'.$checked.' value="Femenino" />'; ?>