如何检查时间是否在给定的时间间隔范围之间

Question

我想比较一个以格式09:30:14存储时间的db列与以相同格式存储时间的php变量。我想检查存储在dbcolumn中的时间是否少于2分钟存储的时间php使用mysql。我希望根据此检查退出一些值

$ordertime_present = 09:32:14;
$ordertime_before = 09:30:14;

$sql = "select count(keyid) as key_id_count from key_master where orderdate='$orderdate' 
     and ordertime between '$ordertime_present' and '$ordertime_before'";

Answer 1

$sql = "select count(keyid) as key_id_count 
        from key_master 
        where orderdate='".$orderdate."' 
        and ordertime between str_to_date('".$ordertime_present."','%H:%i:%s') 
                          and str_to_date('".$ordertime_before."','%H:%i:%s')"; 

编辑：由于ordertime_before小于ordertime_present，它应该是比较中的第一个：

    $sql = "select count(keyid) as key_id_count 
        from key_master 
        where orderdate='".$orderdate."' 
        and ordertime between str_to_date('".$ordertime_before."','%H:%i:%s') 
                          and str_to_date('".$ordertime_present."','%H:%i:%s')";