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<?php $result = []; foreach (range('a', 'e') as $value) { if ($result) { $row[] = $value; unset($row); } $row = [$value]; $result[] = &$row; } var_export($result);
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => array ( 0 => 'a', 1 => 'b', ), 1 => array ( 0 => 'b', 1 => 'c', ), 2 => array ( 0 => 'c', 1 => 'd', ), 3 => array ( 0 => 'd', 1 => 'e', ), 4 => array ( 0 => 'e', ), )

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