relative dates?

[eluser]Derek Allard[/eluser]
Clemens wrote this, I can't take credit. Add it to your date helper and save it in application/helpers

Code:

// ------------------------------------------------------------------------
/**
* Convert MySQL's DATE (YYYY-MM-DD) or DATETIME (YYYY-MM-DD hh:mm:ss) to timestamp
*
* Returns the timestamp equivalent of a given DATE/DATETIME
*
* @todo add regex to validate given datetime
* @author Clemens Kofler <[email protected]>
* @access    public
* @return    integer
*/
function mysqldatetime_to_timestamp($datetime = "")
{
  // function is only applicable for valid MySQL DATETIME (19 characters) and DATE (10 characters)
  $l = strlen($datetime);
    if(!($l == 10 || $l == 19))
    {
      return false;
     }

    //
    $date = $datetime;
    $hours = 0;
    $minutes = 0;
    $seconds = 0;

    // DATETIME only
    if($l == 19)
    {
      list($date, $time) = explode(" ", $datetime);
      list($hours, $minutes, $seconds) = explode(":", $time);
    }

    list($year, $month, $day) = explode("-", $date);

    return mktime($hours, $minutes, $seconds, $month, $day, $year);
}