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   1  <?php
   2  
   3  /*
   4   * This file is part of the symfony package.
   5   * (c) 2004-2006 Fabien Potencier <fabien.potencier@symfony-project.com>
   6   *
   7   * For the full copyright and license information, please view the LICENSE
   8   * file that was distributed with this source code.
   9   */
  10  
  11  /**
  12   * DateHelper.
  13   *
  14   * @package    symfony
  15   * @subpackage helper
  16   * @author     Fabien Potencier <fabien.potencier@symfony-project.com>
  17   * @version    SVN: $Id: DateHelper.php 3495 2007-02-18 09:30:24Z fabien $
  18   */
  19  
  20  function format_daterange($start_date, $end_date, $format = 'd', $full_text, $start_text, $end_text, $culture = null, $charset = null)
  21  {
  22    if ($start_date != '' && $end_date != '')
  23    {
  24      return sprintf($full_text, format_date($start_date, $format, $culture, $charset), format_date($end_date, $format, $culture, $charset));
  25    }
  26    else if ($start_date != '')
  27    {
  28      return sprintf($start_text, format_date($start_date, $format, $culture, $charset));
  29    }
  30    else if ($end_date != '')
  31    {
  32      return sprintf($end_text, format_date($end_date, $format, $culture, $charset));
  33    }
  34  }
  35  
  36  function format_date($date, $format = 'd', $culture = null, $charset = null)
  37  {
  38    static $dateFormats = array();
  39  
  40    if (is_null($date))
  41    {
  42      return null;
  43    }
  44  
  45    if (!$culture)
  46    {
  47      $culture = sfContext::getInstance()->getUser()->getCulture();
  48    }
  49  
  50    if (!$charset)
  51    {
  52      $charset = sfConfig::get('sf_charset');
  53    }
  54  
  55    if (!isset($dateFormats[$culture]))
  56    {
  57      $dateFormats[$culture] = new sfDateFormat($culture);
  58    }
  59  
  60    return $dateFormats[$culture]->format($date, $format, null, $charset);
  61  }
  62  
  63  function format_datetime($date, $format = 'F', $culture = null, $charset = null)
  64  {
  65    return format_date($date, $format, $culture, $charset);
  66  }
  67  
  68  function distance_of_time_in_words($from_time, $to_time = null, $include_seconds = false)
  69  {
  70    $to_time = $to_time? $to_time: time();
  71  
  72    $distance_in_minutes = floor(abs($to_time - $from_time) / 60);
  73    $distance_in_seconds = floor(abs($to_time - $from_time));
  74  
  75    $string = '';
  76    $parameters = array();
  77  
  78    if ($distance_in_minutes <= 1)
  79    {
  80      if (!$include_seconds)
  81      {
  82        $string = $distance_in_minutes == 0 ? 'less than a minute' : '1 minute';
  83      }
  84      else
  85      {
  86        if ($distance_in_seconds <= 5)
  87        {
  88          $string = 'less than 5 seconds';
  89        }
  90        else if ($distance_in_seconds >= 6 && $distance_in_seconds <= 10)
  91        {
  92          $string = 'less than 10 seconds';
  93        }
  94        else if ($distance_in_seconds >= 11 && $distance_in_seconds <= 20)
  95        {
  96          $string = 'less than 20 seconds';
  97        }
  98        else if ($distance_in_seconds >= 21 && $distance_in_seconds <= 40)
  99        {
 100          $string = 'half a minute';
 101        }
 102        else if ($distance_in_seconds >= 41 && $distance_in_seconds <= 59)
 103        {
 104          $string = 'less than a minute';
 105        }
 106        else
 107        {
 108          $string = '1 minute';
 109        }
 110      }
 111    }
 112    else if ($distance_in_minutes >= 2 && $distance_in_minutes <= 45)
 113    {
 114      $string = '%minutes% minutes';
 115      $parameters['%minutes%'] = $distance_in_minutes;
 116    }
 117    else if ($distance_in_minutes >= 46 && $distance_in_minutes <= 90)
 118    {
 119      $string = 'about 1 hour';
 120    }
 121    else if ($distance_in_minutes >= 90 && $distance_in_minutes <= 1440)
 122    {
 123      $string = 'about %hours% hours';
 124      $parameters['%hours%'] = round($distance_in_minutes / 60);
 125    }
 126    else if ($distance_in_minutes >= 1441 && $distance_in_minutes <= 2880)
 127    {
 128      $string = '1 day';
 129    }
 130    else if ($distance_in_minutes >= 2880 && $distance_in_minutes <= 43199)
 131    {
 132      $string = '%days% days';
 133      $parameters['%days%'] = round($distance_in_minutes / 1440);
 134    }
 135    else if ($distance_in_minutes >= 43200 && $distance_in_minutes <= 86399)
 136    {
 137      $string = 'about 1 month';
 138    }
 139    else if ($distance_in_minutes >= 86400 && $distance_in_minutes <= 525959)
 140    {
 141      $string = '%months% months';
 142      $parameters['%months%'] = round($distance_in_minutes / 43200);
 143    }
 144    else if ($distance_in_minutes >= 525960 && $distance_in_minutes <= 1051919)
 145    {
 146      $string = 'about 1 year';
 147    }
 148    else
 149    {
 150      $string = 'over %years% years';
 151      $parameters['%years%'] = round($distance_in_minutes / 525960);
 152    }
 153  
 154    if (sfConfig::get('sf_i18n'))
 155    {
 156      use_helper('I18N');
 157  
 158      return __($string, $parameters);
 159    }
 160    else
 161    {
 162      return strtr($string, $parameters);
 163    }
 164  }
 165  
 166  // Like distance_of_time_in_words, but where to_time is fixed to time()
 167  function time_ago_in_words($from_time, $include_seconds = false)
 168  {
 169    return distance_of_time_in_words($from_time, time(), $include_seconds);
 170  }