<?php $first_arrays = [ ['itemId' => 2, 'title' => 'someTitle', 'bulk_id' => 4], ['itemId' => 3, 'title' => 'someTitle', 'bulk_id' => 5], ['itemId' => 4, 'title' => 'someTitle', 'bulk_id' => 6], ]; $second_arrays = [ ['info' => 'someInfo', 'bulk_id' => 6], ['info' => 'someInfo', 'bulk_id' => 5], ['info' => 'someInfo', 'bulk_id' => 4], ]; function sort_by_bulk(array $a, array $b) : int { return $a['bulk_id'] <=> $b['bulk_id']; } usort($first_arrays, 'sort_by_bulk'); usort($second_arrays, 'sort_by_bulk'); $combined = array_map('array_merge', $first_arrays, $second_arrays); var_dump($combined);
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Value for `_results` contains invalid data `array`