我必须使用密钥,'payment_date'和'balance'.我有一个功能,检查'payment_date'以查看它是否<='今天',它可以工作,但现在我不知道如何从中获取'余额':
function getCurrentBalance($myTable){
$today = new DateTime('now');
$today = $today->format('Y-m-d');
foreach($myTable as $row) {
foreach($row as $key=>$value) {
if ($key == "payment_date" && $value <= $today){
}
}
}
}
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