Php Bracket Maker

smproph · January 24, 2011

Okay right now I have a form that pulls all the values I need and sends it to a separate page, except here is where I run into the problem. I logically have no idea who to write it. I have an array called $teamname that holds all the team names. What I need to do is make it dynamically create the table rows according to how many teams their are and then put the teams against each other like 1v8, 2v7. Here is my script that allows the bracket to work, I just need to convert it to dynamically work

<script>
function win(winner)
{
    var team = winner.value;
    var levels = winner.name.substring(3).split("_");
    var curlevel = parseInt(levels[0]);
    var curgame  = parseInt(levels[1]);

    var nextlevel = curlevel + 1;
    var nextgame  = Math.floor( (curgame+1) / 2 );
    
    var winnerButton = winner.form.elements["WIN"+nextlevel+"_"+nextgame];
    if ( winnerButton == null ) return;

    ++nextlevel;
    nextgame  = Math.floor( (nextgame+1) / 2 );
    var nextButton = winner.form.elements["WIN"+nextlevel+"_"+nextgame];
    var forward = ( nextButton != null && nextButton.value == winnerButton.value );

    winnerButton.value = team;
    if ( forward ) winnerButton.click( );
}
</script>

<?php
$schedule=$_POST['schedule'];

if($schedule=="season")
	{
		$teams=$_POST['teams'];
		$schedule=$_POST['schedule'];
		$teamname = unserialize(urldecode($_POST["teamname"])); 
		$games=$_POST['games'];
		$times=$_POST['times'];

	}
if($schedule=="playoffs")
	{
		$teams=$_POST['teams'];
		$schedule=$_POST['schedule'];
		$teamname = unserialize(urldecode($_POST["teamname"]));
		$games=$_POST['games'];
		$times=$_POST['times'];
		$result = count($teamname);

?>
<form>
<table border=0 cellpadding=3>
<tr>
    <td><input type=button class="team" name="WIN0_1" onclick="win(this)" value="Amherst"></td>
</tr>
<tr>
    <td></td>
    <td><input type=button class="team" name="WIN1_1" onclick="win(this)" value=""></td>

</tr>
<tr>
    <td><input type=button class="team" name="WIN0_2" onclick="win(this)" value="Bowling Green"></td>
</tr>
<tr>
    <td> </td>
    <td> </td>
    <td><input type=button class="team" name="WIN2_1" onclick="win(this)" value=""></td>
</tr>
<tr>
    <td><input type=button class="team" name="WIN0_3" onclick="win(this)" value="Connecticut"></td>
</tr>
<tr>
    <td></td>
    <td><input type=button class="team" name="WIN1_2" onclick="win(this)" value=""></td>
</tr>
<tr>
    <td><input type=button class="team" name="WIN0_4" onclick="win(this)" value="Duke"></td>
</tr>
<tr>
    <td> </td>
    <td> </td>
    <td> </td>
    <td><input type=button class="team" name="WIN3_1" onclick="win(this)" value=""></td>
</tr>
<tr>
    <td><input type=button class="team" name="WIN0_5" onclick="win(this)" value="Elmira"></td>
</tr>
<tr>
    <td></td>
    <td><input type=button class="team" name="WIN1_3" onclick="win(this)" value=""></td>

</tr>
<tr>
    <td><input type=button class="team" name="WIN0_6" onclick="win(this)" value="Florida"></td>
</tr>
<tr>
    <td> </td>
    <td> </td>
    <td><input type=button class="team" name="WIN2_2" onclick="win(this)" value=""></td>
</tr>
<tr>
    <td><input type=button class="team" name="WIN0_7" onclick="win(this)" value="Georgetown"></td>
</tr>
<tr>
    <td></td>
    <td><input type=button class="team" name="WIN1_4" onclick="win(this)" value=""></td>
</tr>
<tr>
    <td><input type=button class="team" name="WIN0_8" onclick="win(this)" value="Hawaii"></td>
</tr>

</table>
</form>
<?
	}
	?>

Simon Mayer · January 24, 2011

Are you wanting to generate fixtures for the teams, or just display fixtures according to a particular order?

Also, what is the exact data in your $teamname array? i.e. what happens if you print_r() it?

smproph · January 25, 2011

Well right now, since I have only entered 4 teams in, it has Team 1 Team 2 Team 3 Team 4 as my array

Array ( [0] => team1 [1] => team2 [2] => team3 [3] => team4 )

Not sure if I understood what you meant when you said

Are you wanting to generate fixtures for the teams, or just display fixtures according to a particular order?

I have it where you type in the teams in order by their seeds. So team1 is Seed #1, Team 2 is Seed #2 and so on... I am trying to get it to where it sees how many teams you put in, maybe with a count function on the array and then put them against each other, Seed 1 vs Seed 8.

Does that make any sense?

Simon Mayer · January 25, 2011

Will something like this do?

<?php
$array = array('t1', 't2', 't3', 't4', 't5', 't6', 't7', 't8');
$j = count($array);
for ($i=0; $i < $j/2; $i++)
{
echo $array[$i] . ' V ' . $array[$j - $i - 1] . '<br/>';
}
?>

smproph · January 25, 2011

I wrote this:

$i=1;
$j=1;
$k=1;
$run=1;
$run2=0;
while($run<=$numofteams)
{
$name="WIN0_'".$i."'";
echo'<tr>
    <td><input type=button class="team" name="'.$name.'" onclick="win(this)" value="'.$teamname[$run].'"></td>
</tr>';
$run++;

	if($run==2)
	{
		$name2="WIN1_'".$j."'";
		echo '<tr>
   					 <td></td>
   						 <td><input type=button class="team" name="'.$name2.'" onclick="win(this)" value=""></td>
				</tr>';

					if($run2==2)
							{
						$name3="WIN'".$k."'_1";
								echo '<tr>
   										 <td></td>
   											 <td><input type=button class="team" name="'.$name3.'" onclick="win(this)" value=""></td>
										</tr>';
										$run2=0;
										$k++;
							}
				$run=0;
				$run2++;
				$j++;
	}

$i++;
}

It almost gets it but just repeats 10,000 times and only fills in team 1 and team 2

BlueSkyIS · January 25, 2011

where do you define $numofteams?

smproph · January 25, 2011

I added it and wrote it like this

	$teams=$_POST['teams'];
		$schedule=$_POST['schedule'];
		$teamname = unserialize(urldecode($_POST["teamname"]));
		$games=$_POST['games'];
		$times=$_POST['times'];
		$numofteams=(count($teamname)/2);

Simon yours works perfect other than the fact I am trying to implement it to those <tr><td> because it makes it where you can click on the winner and it automatically advances them to the next bracket. It connects to my javascript I wrote thats in my first post.

Simon Mayer · January 25, 2011

Just so I understand, are you wanting to produce something like this?

A

-A or B

B

--A or B or C or D

C

-C or D

D

smproph · January 25, 2011

Exactly, It's just like the March Madness bracket if you have ever seen one of those. You have Quarterfinals, then Semi Finals then Finals

Simon Mayer · January 25, 2011

I think I can do something, but it probably won't be tonight.

In case it helps, I've worked out that the teams appear on every other row in round 1

on every fourth row in round 2,

every eighth row in round 3, etc.

smproph · January 25, 2011

Take your time, and thanks. I thought that code I wrote above would work, but for some reason it doesn't like me lol

Simon Mayer · January 26, 2011

Here is something that works as a standalone example. You will need to customise it to work with your script, but I suspect you will find that relatively straight forward. The most difficult thing here was getting the mathematics right in order to place the rows in the right place.

<?php
$array = array('t1', 't2', 't3', 't4', 't5', 't6', 't7', 't8');
$j = count($array);
for ($a=0; pow(2, $a) <= $j; $a++) //determine the highest power of 2 that will go into the array count
{
$maxpower = $a;
}
for ($i=1; $i < $j*2; $i++) //needs almost twice as many rows as teams
{
if($i % 2 != 0) //odd number rows for teams
{
	$line[$i] = '<td><input type=button class="team" value="' . $array[($i-1)/2] . '"></td>';
}
else
{
	for($b=0; $b<=$maxpower; $b++)
	{
		if($i % pow(2, $b) == 0) //even rows for future rounds. every 2^1 rows for first winner, 2^2 for second winner, 2^3 for third and so on.
		{
			if($i % pow(2, $b+1) != 0) //does not divide by the next power of 2, so this must be the last available cell
			{
				$line[$i] .= '<td><input type=button class="team" value=""></td>';
			}
			else //the input will be added in a future round
			{
				$line[$i] .= '<td> </td>';
			}
		}
	}
}
}
?>
<html>
<body>
	<table>
<?php
foreach($line as $row)
{
?>
		<tr>
			<?php echo $row; ?>

		</tr>
<?php
}
?>
	</table>
</body>
</html>

smproph · January 26, 2011

Populates great other than

name="WIN1_1" onclick="win(this)"

is missing in the input tag. But I think i should be able to write something where it changes the "WIN1_1" to "WIN1_2" on the next one and so on

Simon Mayer · January 26, 2011

Populates great other than
name="WIN1_1" onclick="win(this)"
is missing in the input tag. But I think i should be able to write something where it changes the "WIN1_1" to "WIN1_2" on the next one and so on

each row has a value $i - perhaps that could be useful. If not, you should be able to create a new incrementing value as you work through the loops. I didn't go too deeply into that, as I'm not familiar with your code and didn't want to interfere with what you've done already.

smproph · January 26, 2011

I've modified to this

$array = $teamname;
$k=1;
$x=1;

$line[$i] = '<td><input type=button class="team" onclick="win(this)" value="' . $array[($i-1)/2] . '">name="WIN0_'.($k).'"</td>';
$k++;

and this

$line[$i] .= '<td><input type=button class="team" onclick="win(this)" value="">name="WIN1_'.($y+1).'"</td>';
				$y=$x;

Problem is it starts to repeat itself into future rounds. First round works perfect, second

Mr Hyde · January 26, 2011

I don't like to write code when I can just use an open source project:

http://www.phpclasses.org/package/4718-PHP-Manage-knockout-tournament-games.html

phpclasses.org is an awesome site...

Simon Mayer · January 26, 2011

Try this:

<?php
$array = array('t1', 't2', 't3', 't4', 't5', 't6', 't7', 't8');
$j = count($array);
for ($a=0; pow(2, $a) <= $j; $a++) //determine the highest power of 2 that will go into the array count
{
$y[$a] = 1;
$maxpower = $a;
}
for ($i=1; $i < $j*2; $i++)
{
if($i % 2 != 0) //odd number rows for teams
{
	$line[$i] = '<td><input type=button class="team" value="' . $array[($i-1)/2] . '"></td>';
}
else
{
	for($b=0; $b<=$maxpower; $b++)
	{
		if($i % pow(2, $b) == 0) //even rows for future rounds. every 2^1 rows for first winner, 2^2 for second winner, 2^3 for third and so on.
		{
			if($i % pow(2, $b+1) != 0) //does not divide by the next power of 2, so this must be the last available cell
			{
				$line[$i] .= '<td><input type=button class="team" value="">name="WIN'.$b.'_'.($y[$b]++).'</td>';
			}
			else //the input will be added in a future round
			{
				$line[$i] .= '<td> </td>';
			}
		}
	}
}
}
?>
<html>
<body>
	<table>
<?php
foreach($line as $row)
{
?>
		<tr>
			<?php echo $row; ?>

		</tr>
<?php
}
?>
	</table>
</body>
</html>

particular changes:

$y[$a] = 1;

name="WIN'.$b.'_'.($y[$b]++)

smproph · January 26, 2011

Simon once again that worked perfect. Last question, is there a way to have a save option? So the user doesn't lose it.

Simon Mayer · January 26, 2011

Simon once again that worked perfect. Last question, is there a way to have a save option? So the user doesn't lose it.

Yes, there are a few options, but anything you do would take time to implement, as you would need to have a corresponding load option. The biggest obstacle would be getting the data from where it is stored, into the relevant rows.

You could:

Store the data locally (suitable on a temporary basis) by using cookies

Save the data to a database, then give the user a permalink or a password to access it

Output the data to some kind of file, like CSV, Json or XML and then get the user to download it.

I think the database would be your best option, but you would need to structure the tables properly and then develop the queries to write to and read from the database.

smproph · January 26, 2011

Awesome, Thanks again!

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