MySQL查询可根据Current的确切天数获取WordPress Php中的数据

Question

i want to get the ID from the post table where the post_modified date is exactly 5day ago. and foreach ID i get i will do another call another function. i know i have to add a loop somewhere but mybrains hurts when it comes to looping please help!

i have 3 example records to compare date.

{
status: "ok",
post: [
{
ID: "99",
post_modified: "2015-09-02 07:58:14"
},
{
ID: "100",
post_modified: "2015-09-04 02:59:27"
},
{
ID: "101",
post_modified: "2015-09-09 07:36:56"
}
]
}

this is myfunction code

public function test(){
            global $wpdb;
            $data= $wpdb->get_results("SELECT ID FROM $wpdb->posts WHERE post_status like 'wc-completed' AND post_modified < DATE_SUB(now(), INTERVAL 5 DAY)");

            return $data;

        }

Answer 1

好吧，我解决了该问题，以便每隔5天获取正确的数据库

$data= $wpdb->get_results("SELECT ID FROM $wpdb->posts WHERE post_status like 'wc-completed' AND DATE_SUB(CURDATE(),INTERVAL 5 DAY) <= post_modified");