mysql查询中用于时间戳的运算符之间

Question

I have a form to pick up dates from calender. That form will pass start date and end date. My database table stores date in time-stamp format. I have to create a query to pick records from database table between start date and end date. How can I make a query? I have tried the code below, but which is not working.

 if(isset($_POST['filter']))
    {
        $sid=$_POST['sid'];
        $start= date("dMY",strtotime($_POST['start']));
        $end= date("dMY",strtotime($_POST['end']));

        $res=$db->fetchAll("SELECT * FROM `logfile` WHERE `site_id`=".$sid." AND (date('dMY',`timestamp`) BETWEEN $start AND $end)");


    }

Any thoughts?

Thanks.

Answer 1

You're forcing PHP and MySQL to do a lot of useless date/time string<->native conversions for no reason.

Why not simply have:

$start = strtotime($_POST['start']);

SELECT ... WHERE `timestamp` BETWEEN FROM_UNIXTIME($start) AND ...

Answer 2

As @Matei Mihai said you don't need to convert $_POST['start'] and $_POST['end'] to timestamp format and you must enclose date columns in quotes.

Also you need to convert date in MySQL compatible format like '2012-08-01' .

"SELECT * 
 FROM `logfile` 
 WHERE `site_id`=".$sid." AND 
       (date('dMY',`timestamp`) BETWEEN '$start' AND '$end')");

Answer 3

if $_POST['start'] and $_POST['end'] are already in timestamp format, just don't change them. In other case just convert the string in timestamp:

$start = strtotime($_POST['start']); // where $_POST['start'] might be 2012/08/07
$end = strtotime($_POST['end']);


$res=$db->fetchAll("SELECT * FROM logfile WHERE site_id=".$sid." AND date BETWEEN $start AND $end");