与CodeIgniter比较日期

Question

I am trying to compare dates using comparison operators such as => or <. First thing I don't know if this is possible due to the "/". I've been searching for a couple hours no and haven't found anything that allows you to check to see if dates match. I have been able to do this for a single date but haven't found a way to do this for multiple dates.

Since I am using CodeIgnitor my code look a little something like this.

$date = ('9/28/2013');
$listings = $this->db->get('listings', array('listing_end_date <=', $date))->result_array();
print_r($listings); exit;

Yes, I am aware that $date is a string but even as a Date variable I could not get this to work for me.

Answer 1

Assuming that your database is properly architected, the proper date format in MySQL is YYYY-MM-DD. This means you will want to revise your date format as such.

$date = '2013-09-28';

Answer 2

Change date format to YYYY-mm-dd as :

$date = '9/28/2013';
$date = date('Y-m-d', strtotime($date));

Reference