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mf6w
10年前发布

PHP计算两个日期的差

<?php  $date1 = date( 'Y-m-d' );  $date2 = "2015-12-04";  $diff = abs(strtotime($date2) - strtotime($date1));  $years = floor($diff / (365*60*60*24));  $months = floor(($diff - $years * 365*60*60*24) / (30*60*60*24));  $days = floor(($diff - $years * 365*60*60*24 - $months*30*60*60*24)/ (60*60*24));  printf("%d years, %d months, %d days\n", $years, $months, $days);  -------------------------------------------------------- OR  $date1 = new DateTime("2007-03-24");  $date2 = new DateTime("2009-06-26");  $interval = $date1->diff($date2);  echo "difference " . $interval->y . " years, " . $interval->m." months, ".$interval->d." days ";   // shows the total amount of days (not divided into years, months and days like above)  echo "difference " . $interval->days . " days ";  -------------------------------------------------------- OR                /**   * Calculate differences between two dates with precise semantics. Based on PHPs DateTime::diff()   * implementation by Derick Rethans. Ported to PHP by Emil H, 2011-05-02. No rights reserved.   *    * See here for original code:   * http://svn.php.net/viewvc/php/php-src/trunk/ext/date/lib/tm2unixtime.c?revision=302890&view=markup   * http://svn.php.net/viewvc/php/php-src/trunk/ext/date/lib/interval.c?revision=298973&view=markup   */  function _date_range_limit($start, $end, $adj, $a, $b, $result)  {      if ($result[$a] < $start) {          $result[$b] -= intval(($start - $result[$a] - 1) / $adj) + 1;          $result[$a] += $adj * intval(($start - $result[$a] - 1) / $adj + 1);      }      if ($result[$a] >= $end) {          $result[$b] += intval($result[$a] / $adj);          $result[$a] -= $adj * intval($result[$a] / $adj);      }      return $result;  }  function _date_range_limit_days($base, $result)  {      $days_in_month_leap = array(31, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);      $days_in_month = array(31, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);      _date_range_limit(1, 13, 12, "m", "y", &$base);      $year = $base["y"];      $month = $base["m"];      if (!$result["invert"]) {          while ($result["d"] < 0) {              $month--;              if ($month < 1) {                  $month += 12;                  $year--;              }              $leapyear = $year % 400 == 0 || ($year % 100 != 0 && $year % 4 == 0);              $days = $leapyear ? $days_in_month_leap[$month] : $days_in_month[$month];              $result["d"] += $days;              $result["m"]--;          }      } else {          while ($result["d"] < 0) {              $leapyear = $year % 400 == 0 || ($year % 100 != 0 && $year % 4 == 0);              $days = $leapyear ? $days_in_month_leap[$month] : $days_in_month[$month];              $result["d"] += $days;              $result["m"]--;              $month++;              if ($month > 12) {                  $month -= 12;                  $year++;              }          }      }      return $result;  }  function _date_normalize($base, $result)  {      $result = _date_range_limit(0, 60, 60, "s", "i", $result);      $result = _date_range_limit(0, 60, 60, "i", "h", $result);      $result = _date_range_limit(0, 24, 24, "h", "d", $result);      $result = _date_range_limit(0, 12, 12, "m", "y", $result);      $result = _date_range_limit_days(&$base, &$result);      $result = _date_range_limit(0, 12, 12, "m", "y", $result);      return $result;  }  /**   * Accepts two unix timestamps.   */  function _date_diff($one, $two)  {      $invert = false;      if ($one > $two) {          list($one, $two) = array($two, $one);          $invert = true;      }      $key = array("y", "m", "d", "h", "i", "s");      $a = array_combine($key, array_map("intval", explode(" ", date("Y m d H i s", $one))));      $b = array_combine($key, array_map("intval", explode(" ", date("Y m d H i s", $two))));      $result = array();      $result["y"] = $b["y"] - $a["y"];      $result["m"] = $b["m"] - $a["m"];      $result["d"] = $b["d"] - $a["d"];      $result["h"] = $b["h"] - $a["h"];      $result["i"] = $b["i"] - $a["i"];      $result["s"] = $b["s"] - $a["s"];      $result["invert"] = $invert ? 1 : 0;      $result["days"] = intval(abs(($one - $two)/86400));      if ($invert) {          _date_normalize(&$a, &$result);      } else {          _date_normalize(&$b, &$result);      }      return $result;  }  $date = "2014-12-04 19:37:22";  echo '<pre>';  print_r( _date_diff( strtotime($date), time() ) );  echo '</pre>';   ?>