「第16回オフラインリアルタイムどう書くの問題」をPHPで解く

<?php

    class BOSEG{
        /**
        * 境界線分
        * @param String 「060276724276」みたいな文字列
        * @return String 「6,2,1,1,0,1」みたいな文字列
        */
        public function get($input){
            $boseg = array_fill(1, 6, 0);
            // 入力値をパース
            $input = array_map(function($input){
                return sprintf('%03d%03d', base_convert($input[0], 8, 2),base_convert($input[1], 8, 2));
            }, str_split($input, 2));

            // 横向きにチェック
            for($i=0;$i<5;$i++){
                $length=0;
                for($j=0;$j<=5;$j++){
                    if($input[$i][$j] === $input[$i+1][$j]){
                        // 上下が同じなら
                        if($length > 0){
                            // 違いがあったらそこで途切れる
                            $boseg[$length]++;
                            $length=0;
                        }
                    }elseif($j===5){
                        // 最後だけ少し特殊
                        if($input[$i][$j] !== $input[$i+1][$j]){
                            $boseg[$length+1]++;
                        }
                    }else{
                        // 違ってるのが続く
                        $length++;
                    }
                }
            }
            // 縦向きにチェック
            for($i=0;$i<5;$i++){
                $length=0;
                for($j=0;$j<=5;$j++){
                    if($input[$j][$i] === $input[$j][$i+1]){
                        if($length > 0){
                            $boseg[$length]++;
                            $length=0;
                        }
                    }elseif($j===5){
                        if($input[$j][$i] !== $input[$j][$i+1]){
                            $boseg[$length+1]++;
                        }
                    }else{
                        $length++;
                    }
                }
            }
            // 終了
            return implode(',',$boseg);
        }

    }

    // 以下はテスト
    $test = [
        ['060276724276','6,2,1,1,0,1'],
        ['770175454177','2,3,0,3,1,0'],
        ['743733377170','9,3,1,0,0,0'],
        ['724212121273','5,2,1,1,1,1'],
        ['100000000000','3,0,0,0,0,0'],
        ['000002000000','4,0,0,0,0,0'],
        ['003622223600','0,4,0,4,0,0'],
        ['520073737070','8,3,1,1,0,0'],
        ['770077007700','0,0,0,0,0,5'],
        ['555555555514','2,0,0,0,2,2'],
        ['764252427600','4,0,4,0,2,0'],
        ['774555554177','3,3,1,3,0,0'],
        ['674574754557','11,5,0,1,0,0'],
        ['000000000000','0,0,0,0,0,0'],
        ['777777777777','0,0,0,0,0,0'],
        ['774377777577','6,0,2,0,0,0'],
        ['070777777777','0,1,1,0,0,0'],
        ['373737373737','0,0,0,0,0,1'],
        ['603260327725','30,0,0,0,0,0'],
        ['466331144663','30,0,0,0,0,0'],
        ['000000000242','3,2,0,0,0,0'],
        ['567656043772','18,2,1,0,0,0'],
        ['200763012420','15,4,1,0,0,0'],
        ['400101140052','14,3,0,0,0,0'],
        ['764767476476','13,2,0,1,0,0'],
        ['001110140110','12,2,1,0,0,0'],
        ['765405076527','16,3,0,1,0,0'],
        ['377323370373','8,4,2,0,0,0'],
        ['250541131216','11,5,2,0,0,0'],
        ['744165741476','12,3,2,0,0,0'],
        ['042101000300','10,3,0,0,0,0'],
        ['002004554101','11,3,1,0,0,0'],
        ['371707762706','15,1,1,0,0,0'],
        ['130371310175','7,3,1,2,0,0'],
        ['212537003613','13,2,1,1,1,0'],
        ['157700063411','15,3,0,0,0,1'],
        ['011500036007','6,7,1,0,0,0'],
        ['743113313517','17,2,1,0,0,0'],
        ['174105270405','13,3,1,1,0,0'],
        ['427272200311','13,3,2,0,0,0'],
        ['725370332237','12,5,1,1,0,0'],
        ['005640420046','12,1,3,0,0,0'],
        ['700350001101','14,3,1,0,0,0'],
        ['577627744076','16,1,1,1,0,0'],
        ['620332232007','10,4,2,1,0,0'],
        ['260406401000','15,1,1,0,0,0'],
        ['737272723276','5,0,0,0,3,0'],
        ['000400040444','7,0,2,0,0,0'],
        ['370222002177','13,2,2,0,0,0'],
        ['372236024656','9,3,2,0,1,0'],
        ['276131137003','11,6,2,0,0,0'],
        ['742134007240','13,4,2,0,0,0'],
        ['777721775571','13,1,2,0,0,0'],
        ['700301232233','11,2,3,0,0,0'],
    ];

    $boseg = new BOSEG();
    foreach($test as $key=>$data){
        $answer = $boseg->get($data[0]);
        if($answer !== $data[1]){
            print('えらー');
        }
    }