stats/utils.php

<?php

###############################################################
# function getDateBefore($days)                               #
#                                                             #
#   * returns the date from $days days before                 #
###############################################################

function getDateBefore($days){
  $oneWeek = time() - ($days * 24 * 60 * 60);

  return date('Ymd', $oneWeek);
}

###############################################################
# function convertNewsDate($date)                             #
#                                                             #
#   * Transforms a news post date (NNTP-Posting-Date) into    #
#     YYYYMMDD format                                         #
###############################################################
function convertNewsDate($date){
  $months = array('Jan','Feb','Mar','Apr','May','Jun',
                  'Jul','Aug','Sep','Oct','Nov','Dec');
  $i = 0;

  $parts = explode(" ",$date);
  $day = (strlen($parts[0]) == 1)?"0".$parts[0]:$parts[0];
  $year = $parts[2];
  while($parts[1] != $months[$i++]);
  $month = (strlen($i) == 1)?"0".$i:$i;
 
  return $year.$month.$day;
}

function getUnixTimeStamp($date,$time){
  # Date info
  $year  = substr($date,0,4);
  $month = substr($date,4,2);
  $day   = substr($date,6,2);
  # Time info
  $hour = substr($time,0,2);
  $min  = substr($time,3,2);
  $sec  = substr($time,6,2);

  return mktime($hour,$min,$sec,$month,$day,$year);
}

function getUnixTimestampDiff($ts1,$ts2){
  return ($ts2 - $ts1);
}

function realDate($timestamp){
  $rest = ($timestamp % 86400);
  $days = ($timestamp - $rest) / 86400;
  if ($days != 0)
    $str = $days."d ";
  $rest1 = ($rest % 3600);
  $hours = ($rest - $rest1) / 3600;
  if ($hours != 0 || $days != 0)
    $str .= $hours."h ";
#  $rest2 = ($rest1 % 60);
#  $minutes = ($rest1 - $rest2) / 60;
#  if ($minutes != 0 || $hours != 0)
#    $str .= $minutes."m ";
#  $seconds = $rest2;
#    $str .= $seconds."s";

  return $str;
}

function getTimeDiff($date1,$date2){
  $y1 = substr($date1,0,4);
  $m1 = substr($date1,4,2);
  $d1 = substr($date1,6,2);

  $y2 = substr($date2,0,4);
  $m2 = substr($date2,4,2);
  $d2 = substr($date2,6,2);

  $date1 = mktime(0,0,0,$m1, $d1, $y1);
  $date2 = mktime(0,0,0,$m2, $d2, $y2);

  $difference = $date2-$date1;

  return floor($difference/60/60/24);
}

?>