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<?php $array = [[5, 6], [1, 2], [6, 5], [1, 2], [1 => 2, 0 => 1]]; var_export( array_unique( array_map( function ($row) { sort($row); return $row; }, $array ), SORT_REGULAR ) );

This is an error 500

Value for `_results` contains invalid data `array`


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