3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = [1, 2, 3, 5, 4, 7, 6, 8, 9]; $batches = generateBatches($input); function generateBatches($input) { $batches = []; $batchNumber = 0; $prev = 0; foreach ($input as $i) { if ($i > 1 && $i - $prev < 1) { $batchNumber++; } $batches[$batchNumber][] = $i; $prev = $i; } return $batches; } print_r($batches);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Array ( [0] => Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 5 ) [1] => Array ( [0] => 4 [1] => 7 ) [2] => Array ( [0] => 6 [1] => 8 [2] => 9 ) )
preferences:
104.69 ms | 2040 KiB | 4 Q