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<?php $input = ["start" => [/*"lat"=> 1.234,*/ "long"=>4.2134], "end" => ["lat"=>4.314, "long"=>51.341], "long"=>134.]; $expectedInputStructure = ["start" => ["lat"=> 0, "long"=>0], "end" => ["lat"=>0, "long"=>0]]; var_dump(array_keys($input), $input); var_dump(array_diff_key($expectedInputStructure, $input));

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