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<?php $transactions[date('Y-m-d', $transaction[0])][$transaction[4]] += $transaction[1]; if($transaction[4] == 'maintenance') { echo $transaction[1] . " converts to " . $transactions[date('Y-m-d', $transaction[0])][$transaction[4]] . "\n"; }

preferences:
31.66 ms | 402 KiB | 5 Q