Pass a dynamic variable through URL php - php

Question

I'm not sure about the title, I tried my best.
I have a table displayed with information from a database using this file
display.php
<?php
mysql_connect("localhost", "root", "root") or die(mysql_error());
mysql_select_db("tournaments") or die(mysql_error());
$result = mysql_query("SELECT * FROM tournies")
or die(mysql_error());
echo '<table id="bets" class="tablesorter" cellspacing="0" summary="Datapass">
<thead>
<tr>
<th>Tournament <br> Name</th>
<th>Pot</th>
<th>Maximum <br> Players</th>
<th>Minimum <br> Players</th>
<th>Host</th>
<th></th>
<th></th>
</tr>
</thead>
<tbody>';
while($row = mysql_fetch_array( $result )) {
$i=0; if( $i % 2 == 0 ) {
$class = "";
} else {
$class = "";
}
echo "<tr" . $class . "><td>";
echo $row['tour_name'];
$tour_id = $row['tour_name'];
echo "</td><td>";
echo $row['pot']," Tokens";
echo "</td><td class=\"BR\">";
echo $row['max_players']," Players";
echo "</td><td class=\"BR\">";
echo $row['min_players']," Players";
echo "</td><td class=\"BR\">";
echo $row['host'];
echo "</td><td>";
echo "<input id=\"delete_button\" type=\"button\" value=\"Delete Row\" onClick=\"SomeDeleteRowFunction(this)\">";
echo "</td><td>";
echo "<form action=\"join.php?name=$name\" method=\"POST\" >";
echo "<input id=\"join_button\" type=\"submit\" value=\"Join\">";
echo "</td></tr>";
}
echo "</tbody></table>";
?>
Basically I want the user to press a button from a row of the table and they go to a new page called join.php. I need the persons username and the name of the tournament from the row the clicked.
For example here's my page:
When they click the join button at the end of row one it should send them to
'join.php?name=thierusernamehere&tourname=dfgdds'
Any help much appreciated. Thanks.

Answer 1

echo '<td>Join</td>'

Answer 2

There are many way to approach.
The easiest way is just echo 'JOIN';
or you can use a form with hidden input and submit button.
BUT
Your code is really a mess, try to make your code more maintainable and readable. And do NOT use any mysql_* functions, they are deprecated.
Read more about PDO:
http://php.net/manual/en/book.pdo.php
http://net.tutsplus.com/tutorials/php/why-you-should-be-using-phps-pdo-for-database-access/