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<?php $input = ['dir2', 'dir2_1', 'dir2_1_1']; $output = []; foreach (array_reverse($input) as $value) { $output = [$value => $output]; } var_dump($output);
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { ["dir2"]=> array(1) { ["dir2_1"]=> array(1) { ["dir2_1_1"]=> array(0) { } } } }

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