Jour 2 partie 2

advent_of_code_day_2_part_2.php

<?php

$input = [
  [1208,	412,	743, 57	,1097	,53	,71	,1029	,719	,133	,258	,69	,1104	,373	,367	,365],
  [4011,	4316,	1755, 4992	,228	,240	,3333	,208	,247	,3319	,4555	,717	,1483	,4608	,1387	,3542],
  [675,	134,	106, 115	,204	,437	,1035	,1142	,195	,1115	,569	,140	,1133	,190	,701	,1016],
  [4455,	2184,	5109, 221	,3794	,246	,5214	,4572	,3571	,3395	,2054	,5050	,216	,878	,237	,3880],
  [4185,	5959,	292, 2293	,118	,5603	,2167	,5436	,3079	,167	,243	,256	,5382	,207	,5258	,4234],
  [94,	402,	126, 1293	,801	,1604	,1481	,1292	,1428	,1051	,345	,1510	,1417	,684	,133	,119],
  [120,	1921,	115, 3188	,82	,334	,366	,3467	,103	,863	,3060	,2123	,3429	,1974	,557	,3090],
  [53,	446,	994, 71	,872	,898	,89	,982	,957	,789	,1040	,100	,133	,82	,84	,791],
  [2297,	733,	575, 2896	,1470	,169	,2925	,1901	,195	,2757	,1627	,1216	,148	,3037	,392	,221],
  [1343,	483,	67, 1655	,57	,71	,1562	,447	,58	,1561	,889	,1741	,1338	,88	,1363	,560],
  [2387,	3991,	3394, 6300	,2281	,6976	,234	,204	,6244	,854	,1564	,210	,195	,7007	,3773	,3623],
  [1523,	77,	1236, 1277	,112	,171	,70	,1198	,86	,1664	,1767	,75	,315	,143	,1450	,1610],
  [168,	2683,	1480, 200	,1666	,1999	,3418	,2177	,156	,430	,2959	,3264	,2989	,136	,110	,3526],
  [8702,	6973,	203, 4401	,8135	,7752	,1704	,8890	,182	,9315	,255	,229	,6539	,647	,6431	,6178],
  [2290,	157,	2759, 3771	,4112	,2063	,153	,3538	,3740	,130	,3474	,1013	,180	,2164	,170	,189],
  [525,	1263,	146, 954	,188	,232	,1019	,918	,268	,172	,1196	,1091	,1128	,234	,650	,420]
];

$checksum = 0;

foreach ($input as $row) {
  for ($i = 0; $i < count($row); $i++) {
    for ($j = 0; $j < count($row); $j++) {
      if ($row[$i] % $row[$j] === 0 && $row[$i] !== $row[$j]) {
        $checksum += $row[$i] / $row[$j];
        continue 2;
      }
    }
  }
}

echo (int)$checksum;

?>