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<?php $rowsAmounts = array( 5 => 50, 6 => 60, 8 => 80, 10 => 100, 13 => 130,);$confirmedRowsByConditions = array( 8 => 1515.1, 10 => 8984.1,);print_r(array_diff_key($rowsAmounts, $confirmedRowsByConditions));

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