Tourney Bracket System

bracket.php

<?php
    $teams=array('Alpha','Beta','Gamma','Delta','Epsilon','Zeta','Eta');
    
    define('MY_EOL','<br .>'.PHP_EOL);
    $round=0;
    
    $participants=$teams;
    while(count($participants)>1)
    {
        $round++;  // Increment our round
        Echo 'Round '. $round. MY_EOL;
        $tables=array();  // Clear our tables
        $index=0;
        while(count($tables) < floor(count($participants)/2))  // want an even amount of tables
            $tables[]=array($participants[$index++],$participants[$index++]);
        if($index<count($participants))// extra team, add to tables, but no opposing team
            $tables[]=array($participants[$index++],NULL); 
        $participants=array(); // clear out next round participants
        foreach($tables as $idx=>$table)
        {
            $tbl=$idx+1;
            echo " Table #{$tbl}: ";
            if($table[1]===NULL)  // extra team advances to next level automatically
            {
                echo "{$table[0]} Holdover";
                $winner=0;
            } else  {
                echo "{$table[0]} vs. {$table[1]}";
                $winner=rand(0,1);    // Generate a winner
            }
            echo " - Winner {$table[$winner]}". MY_EOL;
            $participants[]=$table[$winner];  // Add WInnerto next round
        }
    }  
?>