MOBA challenger

<?php

$input = readline();

$players =[];
while ($input !== "Season end") {

    if (strstr($input, '->')) {
        list($player, $position, $skill) = explode(" -> ", $input);
        if (!key_exists($player, $players)) {
            $players[$player][$position] = $position;
            $players[$player][$skill] = intval($skill);
        } else {
            if (!key_exists($position, $players[$player])) {
                $players[$player][$position] = $position;
                if (key_exists($skill, $players[$player])) {
                    $players[$player]['$skill'.$skill] = intval($skill);
                } else {
                    $players[$player][$skill] = intval($skill);
                }
            } else {
                if ($players[$player][$skill][0] === '$') {
                    if ($players[$player]['$skill'.$skill] < $skill) {
                        $players[$player][$skill] = intval($skill);
                    }
                } else {
                    if ($players[$player][$skill] < $skill) {
                        $players[$player][$skill] = intval($skill);
                    }
                }
            }
        }
    } else if (false !== strpos($input, 'vs')) {
        list($leftPlayer, $rightPlayer) = explode(" vs ", $input);
        if (key_exists($leftPlayer, $players) && key_exists($rightPlayer, $players)) {
            $matches = array_intersect($players[$leftPlayer], $players[$rightPlayer]);
            if (count($matches) !== 0) {
                $totalLeftSum = 0 ;
                foreach ($players[$leftPlayer] as $key => $value) {
                    if (is_numeric($key)) {
                        $totalLeftSum += $key;
                    }
                }
                $totalRightSum = 0;
                foreach ($players[$rightPlayer] as $key => $value) {
                    if (is_numeric($key)) {
                        $totalRightSum += $key;
                    }
                }

                if ($totalRightSum > $totalLeftSum) {
                    unset($players[$leftPlayer]);
                } else if ($totalLeftSum > $totalRightSum) {
                    unset($players[$rightPlayer]);
                } else if($totalRightSum === $totalLeftSum) {
                    $input = readline();
                    continue;
                }
            }
        }
    }

    $input = readline();
}

$playersPrint = [];
$statsPrint = [];
foreach ($players as $name => $values) {
    $totalSum = 0;
    foreach ($values as $key => $value) {
        if (is_numeric($key)) {
            $totalSum += $key;
        } else if ($key[0] === '$') {
            $totalSum += $value;
        }
    }
    $playersPrint[$name] = $totalSum;
}

foreach ($players as $currName => $val) {
    $currStat = implode(" ", $players[$currName]);
    $tokens = explode(" ", $currStat);
    if (count($tokens) === 2) {
        $statsPrint[$currName][$tokens[0]] = intval($tokens[1]);
    } else {
        for ($i = 0; $i < count($tokens);$i++){
            if ($i % 2 === 1) {
                $statsPrint[$currName][$tokens[$i - 1]] = intval($tokens[$i]);
            }
        }
    }

}

uksort($playersPrint, function($key1, $key2) use ($playersPrint){
   $val1 = $playersPrint[$key1];
   $val2 = $playersPrint[$key2];

   if ($val1 === $val2) {
       return $key1 <=> $key2;
   }
   return $val2 <=> $val1;
});

foreach ($playersPrint as $name => $val) {
    echo "$name: $val skill" . PHP_EOL;
    foreach ($statsPrint[$name] as $pos => $stat) {
        $currArr = $statsPrint[$name];
        uksort($currArr, function($key1, $key2) use($currArr) {
            $val1 = $currArr[$key1];
            $val2 = $currArr[$key2];

            if ($val1 === $val2) {
                return $key1 <=> $key2;
            }
            return $val2 <=> $val1;
        });
    }
    foreach ($currArr as $poss => $statt) {
        echo "- $poss <::> $statt" . PHP_EOL;
    }
}