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<?php $array = [ 'max_size_video' => 50000, 'max_size_photo' => 8000, 'token_expire' => 100, 'dns' => 'mydns.fr', ]; $result = []; foreach ($array as $path => $value) { $ref = &$result; foreach (explode('_', $path) as $key) { $ref = &$ref[$key]; } $ref = $value; } var_export($result);
Output for git.master, git.master_jit, rfc.property-hooks
array ( 'max' => array ( 'size' => array ( 'video' => 50000, 'photo' => 8000, ), ), 'token' => array ( 'expire' => 100, ), 'dns' => 'mydns.fr', )

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