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<?php $array = ['A', 'B', 'C']; var_export(array_chunk($array, 1)); echo "\n---\n"; var_export(array_map(fn($v) => (array) $v, $array)); echo "\n---\n"; var_export(array_map(fn($v) => [$v], $array)); echo "\n---\n"; $result = []; foreach ($array as $result[][]); var_export($result);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array ( 0 => array ( 0 => 'A', ), 1 => array ( 0 => 'B', ), 2 => array ( 0 => 'C', ), ) --- array ( 0 => array ( 0 => 'A', ), 1 => array ( 0 => 'B', ), 2 => array ( 0 => 'C', ), ) --- array ( 0 => array ( 0 => 'A', ), 1 => array ( 0 => 'B', ), 2 => array ( 0 => 'C', ), ) --- array ( 0 => array ( 0 => 'A', ), 1 => array ( 0 => 'B', ), 2 => array ( 0 => 'C', ), )
preferences:
116.17 ms | 403 KiB | 89 Q