sql在单选按钮中显示数据

Question

i have few answers to quiz stored in db. i am displaying them as radio buttons on form like this

$row = mysql_fetch_array(mysql_query('select * FROM quiz order by rand() limit 1'),MYSQL_ASSOC);

<?php
        foreach ($row as $key => $value) {
            echo "<input type='radio' name='answer'>".$value."</input><br />";
        }
    ?>

but when i post this form the echo on other end is not getting a radio button answer i selected. please help

Answer 1

echo "<input type='radio' name='answer' value='".$value."'>".$value."</input><br />";