Mysql查询日期> = 90天

Question

我想在数据库中查询日期等于或大于90天的记录.这是我到目前为止:

$format = 'Y-m-j G:i:s'; 

$date = date ( $format ); 

// -90 days from today 

date ( $format, strtotime ( '-90 day' . $date ) ); 

我现在有点不确定如何构建MYSQL查询.它会是这样的(我知道这是错的,但我不确定还有什么可做):

"SELECT * FROM recurringPayments WHERE lastpmt >= date ( $format, strtotime ( '-90 day' . $date ) ) ";

Answer 1

<?php
mysql_query("SELECT * FROM recurringPayments WHERE lastpmt <= (NOW() - INTERVAL 90 DAY)");
?>

Answer 2

<?php
$d = date ( $format, strtotime ( '-90 days' ) );

mysql_query("SELECT * FROM recurringPayments WHERE lastpmt <= '$d'");
?>

假设您想要90天及以上的数据.