Dynamic naming of radio buttons - php

Question

I have "n" number of rows being returned by a sql statement. Works great. For every row returned, I would like the user to pick an option (either option 'a' or option 'b')
As standard practice a while loop is used to iterate through each row, and I attempt to name my options by the row number. However, I run into problems when I attempt to get the value of the radio button the user has selected.
I can't seem to dynamically get the value of the radio button named 1 in the first loop (or any loop with it's appropriate name) of the where clause.
Code snippet here:
$counter = 1;
while($row = mysql_fetch_array($result))
{
echo "<form action='updatepics.php' method='post'>";
echo "<input type='radio' name='m" . $counter . "' value= ". $row['f_id'] ."> " . $row['Favorite'];
echo "<input type='hidden' name='game' value=" . $counter . ">";
echo " vs " . $row['Underdog'] ." ";
echo "<input type='radio' name='m" . $counter . "' value= ". $row['d_id'] ."> ";
echo "<br>";
echo "<input type='hidden' name='choice' value=" . $_GET["m" . $counter] . " >";
echo "<input type='submit' value='Make Choice'>";
echo "</form>";
$counter ++;
}
updatepics.php:
Game
<?php
echo $_POST['game'];
echo " " . $_POST['player'] . " picks: ";
echo " " . $_POST['choice'] ;
?>
output of updatepics.php...
Game 1 granny picks:
Notice 'choice' is null

Answer 1

According to the HTML4 specification, names attributes are defined as CDATA and CDATA is defined as follows:
ID and NAME tokens must begin with a letter ([A-Za-z]) and may be followed by any number of letters, digits ([0-9]), hyphens ("-"), underscores ("_"), colons (":"), and periods (".").
Modify your code to have all name values start with at least one letter.

Answer 2

I bailed out from dynamically creating a radio button name. Now all radio buttons have the same name through each iteration of the loop.
It seems to work passing the correct value at the correct time even if you select all of the buttons are set before hitting the submit button for each iteration.
echo "<form action='updatepics.php' method='post'>";
echo "<input type='radio' name='mw' value= ". $row['f_id'] ."> " . $row['Favorite'];
echo "<input type='hidden' name='game' value=" . $row['f_id'] . ">";
echo "<input type='hidden' name='player' value='" . $user . "' >";
echo " vs " . $row['Underdog'] ." ";
echo "<input type='radio' name='mw' value= ". $row['d_id'] ."> ";
echo " " . $row['line'];
echo "<input type='submit' value='Make Choice'>";
echo "</form>";
updatepics.php is just as simple, and it works:
$_POST['mw']