Date Ranges

Pretty PHP Date Ranges

Posted on December 28, 2013

Last week I needed to come up with a way to display a pretty date range based on a starting and ending date in PHP. It’s simple enough use PHP’s date function to convert a unix timestamp into a pretty date format, but PHP doesn’t have a built in function to format date ranges.

The goal was to take two unix time stamps and output a range that looks like this:

January 25 – 26th, 2014

This sounds and is simple until you take into account that sometimes it crosses months and needs to look like this:

January 25 – February 2nd, 2014

or could cross years like this:

December 25th, 2013 – January 3rd, 2014

So here is the code to build those prettified date ranges:

 * @since 1.0
 */

function jb_verbose_date_range($start_date = '',$end_date = '') {

    $date_range = '';

    // If only one date, or dates are the same set to FULL verbose date
    if ( empty($start_date) || empty($end_date) || ( date('FjY',$start_date) == date('FjY',$end_date) ) ) { // FjY == accounts for same day, different time
        $start_date_pretty = date( 'F jS, Y', $start_date );
        $end_date_pretty = date( 'F jS, Y', $end_date );
    } else {
         // Setup basic dates
        $start_date_pretty = date( 'F j', $start_date );
        $end_date_pretty = date( 'jS, Y', $end_date );
        // If years differ add suffix and year to start_date
        if ( date('Y',$start_date) != date('Y',$end_date) ) {
            $start_date_pretty .= date( 'S, Y', $start_date );
        }

        // If months differ add suffix and year to end_date
        if ( date('F',$start_date) != date('F',$end_date) ) {
            $end_date_pretty = date( 'F ', $end_date) . $end_date_pretty;
        }
    }

    // build date_range return string
    if( ! empty( $start_date ) ) {
          $date_range .= $start_date_pretty;
    }

    // check if there is an end date and append if not identical
    if( ! empty( $end_date ) ) {
        if( $end_date_pretty != $start_date_pretty ) {
              $date_range .= ' - ' . $end_date_pretty;
          }
     }
    return $date_range;
}

Also available on GitHub/Gist here.

To actually use that in WordPress you’d just add something like this in your template file where you wanted to output the date, here based on two custom field values.

';
     echo jb_verbose_date_range( $start_date , $end_date );
     echo '';
}