Smarty relative date ... (time) agoSave to plugins folderUsage: <%$date|relative_date%>

modifier.relative_date.php

<?php

/*
* Smarty plugin
* -------------------------------------------------------------
* Type:     modifier
* Name:     relative_date
* Version:  1.1
* Date:     November 28, 2008
* Author:   Chris Wheeler <chris@haydendigital.com>
* Purpose:  Output dates relative to the current time
* Input:    timestamp = UNIX timestamp or a date which can be converted by strtotime()
*           days = use date only and ignore the time
*           format = (optional) a php date format (for dates over 1 year)
* -------------------------------------------------------------
*/

if ( !function_exists('smarty_modifier_relative_date') ) {
    function smarty_modifier_relative_date($timestamp, $days = false, $format = "Y") {
      
      if (!is_numeric($timestamp)) {
        // It's not a time stamp, so try to convert it...
        $timestamp = strtotime($timestamp);
      }
      
      if (!is_numeric($timestamp)) {
        // If its still not numeric, the format is not valid
        return false;
      }
      
      // Calculate the difference in seconds
      $difference = time() - $timestamp;
      
      // Check if we only want to calculate based on the day
      if ($days && $difference < (60*60*24)) { 
        return "Today"; 
      }
      if ($difference < 3) { 
        return "Just now"; 
      }
      if ($difference < 60) {    
        return $difference . " seconds"; 
      }
      if ($difference < (60*2)) {    
        return "1 minute"; 
      }
      if ($difference < (60*60)) { 
        return intval($difference / 60) . " minutes"; 
      }
      if ($difference < (60*60*2)) { 
        return "1 hour"; 
      }
      if ($difference < (60*60*24)) {    
        return intval($difference / (60*60)) . " hours"; 
      }
      if ($difference < (60*60*24*2)) { 
        return "Yesterday"; 
      }
      if ($difference < (60*60*24*7)) {
        $days = intval($difference / (60*60*24));
        return date('l', time()-(86400/*day in sec*/*$days));
      }
      if ($difference < (60*60*24*7*2)) { 
        return "1 week"; 
      }
      if ($difference < (60*60*24*7*(52/12))) { 
        return intval($difference / (60*60*24*7)) . " weeks"; 
      }
      if ($difference < (60*60*24*7*(52/12)*2)) { 
        return "1 month"; 
      }
      if ($difference < (60*60*24*364)) { 
        return intval($difference / (60*60*24*7*(52/12))) . " months"; 
      }
      
      // More than a year ago, just return the formatted date
      return @date($format, $timestamp);
    }
}

?>