<?php $sumPrice = 5.00; $subtotal = 0.00; $voucherSum = sprintf('%01.2f', (sprintf('%01.2f',$sumPrice) - sprintf('%01.2f',$subtotal))); $parameter['has_voucher'] = (abs($voucherSum) >= 0.01) ? 1 : 0; var_dump($voucherSum); var_dump($parameter);
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