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run code in 300+ PHP versions simultaneously
<?php $array1 = [ [10, 'Some Name..'], [11, 'Some Name..'], [13, 'Some Name..'], ]; $array2 = [ [13, 'Viewed'] ]; $result = []; foreach (array_merge($array1, $array2) as $row) { if (!isset($result[$row[0]])) { $result[$row[0]] = $row; } else { $result[$row[0]][] = $row[1]; } } var_export($result);
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
array ( 10 => array ( 0 => 10, 1 => 'Some Name..', ), 11 => array ( 0 => 11, 1 => 'Some Name..', ), 13 => array ( 0 => 13, 1 => 'Some Name..', 2 => 'Viewed', ), )
preferences:
123.09 ms | 407 KiB | 5 Q