Modify script?

[Genesis730]

I have this script that takes a UNIX timestamp and determines how long it will be or has been since the timestamp... I was hoping somebody could help me modify it to also show the current array plus the one before it... so if there's 1 week, it'll show x days or if theres 1 month it'll show x weeks, etc... to get a more accurate reading.

Here is the script...

 

<?php
    function timeSince($timestamp) {
        $chunks = array(
        array(60 * 60 * 24 * 365 , 'year'),
        array(60 * 60 * 24 * 30 , 'month'),
        array(60 * 60 * 24 * 7, 'week'),
        array(60 * 60 * 24 , 'day'),
        array(60 * 60 , 'hour'),
        array(60 , 'minute'),
        array(1, 'second')
    );

    $since = time() - $timestamp;

    for ($i = 0, $j = count($chunks); $i < $j; $i++) {    
        $seconds = $chunks[$i][0];
        $name = $chunks[$i][1];

        if(($count = floor($since / $seconds)) != 0) break;
    }

    $printtime = ($count == 1) ? "1 {$name}" : "$count {$name}s";

    return $printtime . " ago";
    }

    function timeUntil($timestamp) {
        $chunks = array(
        array(60 * 60 * 24 * 365 , 'year'),
        array(60 * 60 * 24 * 30 , 'month'),
        array(60 * 60 * 24 * 7, 'week'),
        array(60 * 60 * 24 , 'day'),
        array(60 * 60 , 'hour'),
        array(60 , 'minute'),
        array(1, 'second')
    );

    $until = $timestamp - time();

    for ($i = 0, $j = count($chunks); $i < $j; $i++) {    
        $seconds = $chunks[$i][0];
        $name = $chunks[$i][1];

        if(($count = floor($until / $seconds)) != 0) break;
    }
    
    if($count < 0) return "Expired ".timeSince($original);

    $printtime = ($count == 1) ? "1 {$name}" : "$count {$name}s";

    return $printtime;
}

?>

[QuickOldCar]

<?php
//implement leap year function
function isleapyear($year = '') {
   if (empty($year)) {
      $year = date('Y');
   }
   $year = (int) $year;
   if ($year % 4 == 0) {
      if ($year % 100 == 0) {
         return ($year % 400 == 0);
      } else {
         return true;
      }
   } else {
      return false;
   }
}

function date_diff($date, $date2 = 0)
{
    if(!$date2)
        $date2 = mktime();

    $date_diff = array('seconds'  => '',
                       'minutes'  => '',
                       'hours'    => '',
                       'days'     => '',
                       'weeks'    => '',
                       'years'    => '',
                       
                       'tseconds' => '',
                       'tminutes' => '',
                       'thours'   => '',
                       'tdays'    => '',
                       'tweeks'   => '',
                       'tyears'    => '');
  
    if($date2 > $date)
        $tmp = $date2 - $date;
    else
        $tmp = $date - $date2;

    $seconds = $tmp;
    
    $date_diff['years'] = floor($tmp/31556926);
    $tmp -= $date_diff['years'] * 31556926;

    $date_diff['weeks'] = floor($tmp/604800);
    $tmp -= $date_diff['weeks'] * 604800;

    $date_diff['days'] = floor($tmp/86400);
    $tmp -= $date_diff['days'] * 86400;

    $date_diff['hours'] = floor($tmp/3600);
    $tmp -= $date_diff['hours'] * 3600;

    $date_diff['minutes'] = floor($tmp/60);
    $tmp -= $date_diff['minutes'] * 60;

    $date_diff['seconds'] = $tmp;
    
    $date_diff['tyears'] = floor($seconds/31556926);
    $date_diff['tweeks'] = floor($seconds/604800);
    $date_diff['tdays'] = floor($seconds/86400);
    $date_diff['thours'] = floor($seconds/3600);
    $date_diff['tminutes'] = floor($seconds/60);
    $date_diff['tseconds'] = $seconds;

    return $date_diff;
}

$time1_value = "now";//change this
$time2_value = "next Saturday";//change this
$time1 = strtotime($time1_value);
$time2 = strtotime($time2_value);
$diff = date_diff($time1, $time2);

echo "Time between <b>$time1_value</b> and <b>$time2_value</b><br />";
echo "Years: " .$diff['years']. "<br />";
echo "Weeks: " .$diff['weeks']. "<br />";
echo "Days: " .$diff['days']. "<br />";
echo "Hours: " .$diff['hours']. "<br />";
echo "Minutes: " .$diff['minutes']. "<br />";
echo "Seconds: " .$diff['seconds']. "<br />";

?>