Online PHP editor | refs for 8XfVQ

<?php $data = [ 'history' => [ 'id' => 23452435, 'legend' => [ ['player' => 'me', 'turn' => 1, 'card' => ['name' => 'foo']], ['player' => 'me', 'turn' => 1, 'card' => ['name' => 'bar']], ['player' => 'opponent', 'turn' => 1, 'card' => ['name' => 'derp']], ['player' => 'opponent', 'turn' => 2, 'card' => ['name' => 'hoo']], ], ] ]; $result = []; foreach ($data['history']['legend'] as $list) { $result[$list['turn']-1][$list['player']][] = $list['card']['name']; } var_export($result);