save Date Number in PHP variable

This question goes along with another one of my post that I already accepted

How do I get the "date number" in php

2010-08-24 20:00:00.000 

I want to assign the current date number to a variable $current_date_num so I can use it in my query to compare what is already in the database.

$qu开发者_如何学Cery ="SELECT * FROM Reservations WHERE [Room_ID] = '$field' AND [Meeting Start] > '$current_date_num' ORDER BY [Meeting Start] asc ";

If you are only using it in the database, consider NOW

To get the current date number in the format above you would do:

echo date("Y-m-d H:i:s.u")

well, you can get the date number like this.. ex. from php.net http://php.net/manual/en/function.date.php.

<?php
// Assuming today is March 10th, 2001, 5:16:18 pm, and that we are in the
// Mountain Standard Time (MST) Time Zone

    $today = date("F j, Y, g:i a");                 // March 10, 2001, 5:16 pm
    $today = date("m.d.y");                         // 03.10.01
    $today = date("j, n, Y");                       // 10, 3, 2001
    $today = date("Ymd");                           // 20010310
    $today = date('h-i-s, j-m-y, it is w Day');     // 05-16-18, 10-03-01, 1631 1618 6 Satpm01
    $today = date('\i\t \i\s \t\h\e jS \d\a\y.');   // it is the 10th day.
    $today = date("D M j G:i:s T Y");               // Sat Mar 10 17:16:18 MST 2001
    $today = date('H:m:s \m \i\s\ \m\o\n\t\h');     // 17:03:18 m is month
    $today = date("H:i:s");                         // 17:16:18
    ?>

$current_date_num = date("Y-m-d H:i:s.u", time());

refer to http://php.net/manual/en/function.date.php

If you are trying to specify it in the page from user side use it this way

 strtotime($time1)