Fixtures Generator

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Fixtures for $teams teams.

"; // If odd number of teams add a "ghost". $ghost = false; if ($teams % 2 == 1) { $teams++; $ghost = true; } // Generate the fixtures using the cyclic algorithm. $totalRounds = $teams - 1; $matchesPerRound = $teams / 2; $rounds = array(); for ($i = 0; $i < $totalRounds; $i++) { $rounds[$i] = array(); } for ($round = 0; $round < $totalRounds; $round++) { for ($match = 0; $match < $matchesPerRound; $match++) { $home = ($round + $match) % ($teams - 1); $away = ($teams - 1 - $match + $round) % ($teams - 1); // Last team stays in the same place while the others // rotate around it. if ($match == 0) { $away = $teams - 1; } $rounds[$round][$match] = team_name($home + 1, $names) . " v " . team_name($away + 1, $names); } } // Interleave so that home and away games are fairly evenly dispersed. $interleaved = array(); for ($i = 0; $i < $totalRounds; $i++) { $interleaved[$i] = array(); } $evn = 0; $odd = ($teams / 2); for ($i = 0; $i < sizeof($rounds); $i++) { if ($i % 2 == 0) { $interleaved[$i] = $rounds[$evn++]; } else { $interleaved[$i] = $rounds[$odd++]; } } $rounds = $interleaved; // Last team can't be away for every game so flip them // to home on odd rounds. for ($round = 0; $round < sizeof($rounds); $round++) { if ($round % 2 == 1) { $rounds[$round][0] = flip($rounds[$round][0]); } } // Display the fixtures for ($i = 0; $i < sizeof($rounds); $i++) { print "

Round " . ($i + 1) . "

\n"; foreach ($rounds[$i] as $r) { print $r . "
"; } print "
"; } print "

Second half is mirror of first half

"; $round_counter = sizeof($rounds) + 1; for ($i = sizeof($rounds) - 1; $i >= 0; $i--) { print "

Round " . $round_counter . "

\n"; $round_counter += 1; foreach ($rounds[$i] as $r) { print flip($r) . "
"; } print "
"; } print "
"; if ($ghost) { print "Matches against team " . $teams . " are byes."; } } function flip($match) { $components = explode(' v ', $match); return $components[1] . " v " . $components[0]; } function team_name($num, $names) { $i = $num - 1; if (sizeof($names) > $i && strlen(trim($names[$i])) > 0) { return trim($names[$i]); } else { return $num; } } function get_form() { $s = ''; $s = '

Enter number of teams OR team names

' . "\n"; $s .= '' . "\n"; $s .= '\n"; return $s; } main(); ?>