index.php

<?php

define('TODAY', (new DateTime('now', new DateTimeZone('Europe/Brussels')))->format('M jS, Y'));
define('FILE_PATH', 'matches.csv');
$matches = [];
$standings = [];
$teams = [];

function getEmptyStatsArray()
{
    return [
        'games' => 0,
        'points' => 0,
        'wins' => 0,
        'losses' => 0,
        'draws' => 0,
        'GF' => 0,
        'GA' => 0,
        'GD' => 0,
    ];
}

$handle = fopen(FILE_PATH, 'r');
$headers = fgetcsv($handle, 1000);

while ($line = fgetcsv($handle, 1000)) {
    $match = array_combine($headers, $line);
    $matches[] = $match;
    $homeTeam = $match['home-team'];
    $awayTeam = $match['away-team'];
    if (!array_key_exists($homeTeam, $standings)) {
        $standings[$homeTeam] = getEmptyStatsArray();
    }
    if (!array_key_exists($awayTeam, $standings)) {
        $standings[$awayTeam] = getEmptyStatsArray();
    }
    $standings[$homeTeam]['games']++;
    $standings[$awayTeam]['games']++;

    if ($match['home-team-goals'] === $match['away-team-goals']) {
        $standings[$homeTeam]['points']++;
        $standings[$awayTeam]['points']++;
        $standings[$homeTeam]['draws']++;
        $standings[$awayTeam]['draws']++;
    } elseif ($match['home-team-goals'] > $match['away-team-goals']) {
        $standings[$homeTeam]['points'] += 3;
        $standings[$homeTeam]['wins']++;
        $standings[$awayTeam]['losses']++;
    } else {
        $standings[$awayTeam]['points'] += 3;
        $standings[$awayTeam]['wins']++;
        $standings[$homeTeam]['losses']++;
    }
    $standings[$homeTeam]['GF'] += $match['home-team-goals'];
    $standings[$homeTeam]['GA'] += $match['away-team-goals'];
    $standings[$awayTeam]['GF'] += $match['away-team-goals'];
    $standings[$awayTeam]['GA'] += $match['home-team-goals'];
    $standings[$homeTeam]['GD'] = $standings[$homeTeam]['GF'] - $standings[$homeTeam]['GA'];
    $standings[$awayTeam]['GD'] = $standings[$awayTeam]['GF'] - $standings[$awayTeam]['GA'];

}

uasort($standings, function ($a, $b) {
    if ($a['points'] === $b['points']) {
        return 0;
    }
    return $a['points'] > $b['points'] ? -1 : 1;
});

$teams = array_keys($standings);
sort($teams);

require('vue.php');