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<?php $vouchers = array( 1 => 100, 3 => 150, 5 => 100 ); $discounts = array(); $orders = array(50, 100, 200, 300, 500, 1000); foreach ($orders as $order) { $vouchers2 = $vouchers; foreach ($vouchers2 as $id => $voucher) { $discounts[$order][$id] = 0; } $remainingValue = $order; $voucher = array_pop($vouchers2); if ($voucher === null) { echo 'exiting for order '. $order . PHP_EOL; continue; } echo "order: " . $order . PHP_EOL; echo "voucher : " . $voucher . PHP_EOL; while($remainingValue > 0 && $voucher !== null) { $value = min ($remainingValue, $voucher); $discounts[$order][$id] = $value; $voucher = array_pop($vouchers2); $remainingValue -= $value; } } var_dump($discounts);
Output for git.master, git.master_jit, rfc.property-hooks
order: 50 voucher : 100 order: 100 voucher : 100 order: 200 voucher : 100 order: 300 voucher : 100 order: 500 voucher : 100 order: 1000 voucher : 100 array(6) { [50]=> array(3) { [1]=> int(0) [3]=> int(0) [5]=> int(50) } [100]=> array(3) { [1]=> int(0) [3]=> int(0) [5]=> int(100) } [200]=> array(3) { [1]=> int(0) [3]=> int(0) [5]=> int(100) } [300]=> array(3) { [1]=> int(0) [3]=> int(0) [5]=> int(50) } [500]=> array(3) { [1]=> int(0) [3]=> int(0) [5]=> int(100) } [1000]=> array(3) { [1]=> int(0) [3]=> int(0) [5]=> int(100) } }

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