From 1f560ccd8a9e21871dbedd548fc97f231131c771 Mon Sep 17 00:00:00 2001 From: xue <> Date: Wed, 30 Aug 2006 12:33:43 +0000 Subject: merge from 3.0 branch till 1363. --- framework/Util/TDateTimeStamp.php | 700 ++++++++++++++++++++++++++++++++ framework/Util/TSimpleDateFormatter.php | 14 +- 2 files changed, 709 insertions(+), 5 deletions(-) create mode 100644 framework/Util/TDateTimeStamp.php (limited to 'framework/Util') diff --git a/framework/Util/TDateTimeStamp.php b/framework/Util/TDateTimeStamp.php new file mode 100644 index 00000000..6a5bd9e6 --- /dev/null +++ b/framework/Util/TDateTimeStamp.php @@ -0,0 +1,700 @@ + + * @link http://www.pradosoft.com/ + * @copyright Copyright © 2006 PradoSoft + * @license http://www.pradosoft.com/license/ + * @version $Revision: 30/08/2006 $ + * @package System.Util + */ + +/* + This code was originally for windows. But apparently this problem happens + also with Linux, RH 7.3 and later! + + glibc-2.2.5-34 and greater has been changed to return -1 for dates < + 1970. This used to work. The problem exists with RedHat 7.3 and 8.0 + echo (mktime(0, 0, 0, 1, 1, 1960)); // prints -1 + + References: + http://bugs.php.net/bug.php?id=20048&edit=2 + http://lists.debian.org/debian-glibc/2002/debian-glibc-200205/msg00010.html +*/ + +if (!defined('ADODB_ALLOW_NEGATIVE_TS')) define('ADODB_NO_NEGATIVE_TS',1); + +/** + * TDateTimeStamp Class + * + * TDateTimeStamp Class is adpated from the ADOdb Date Library, + * part of the ADOdb abstraction library + * Download: http://phplens.com/phpeverywhere/ + * + * http://phplens.com/phpeverywhere/adodb_date_library + * + * PHP native date functions use integer timestamps for computations. + * Because of this, dates are restricted to the years 1901-2038 on Unix + * and 1970-2038 on Windows due to integer overflow for dates beyond + * those years. This library overcomes these limitations by replacing the + * native function's signed integers (normally 32-bits) with PHP floating + * point numbers (normally 64-bits). + * + * Dates from 100 A.D. to 3000 A.D. and later have been tested. The minimum + * is 100 A.D. as <100 will invoke the 2 => 4 digit year conversion. + * The maximum is billions of years in the future, but this is a theoretical + * limit as the computation of that year would take too long with the + * current implementation of {@link getTimeStamp}. + * + * PERFORMANCE + * For high speed, this library uses the native date functions where + * possible, and only switches to PHP code when the dates fall outside + * the 32-bit signed integer range. + * + * @author Wei Zhuo + * @version $Revision: $ 30/08/2006 $ + * @package System.Util + * @since 3.0.4 + */ +class TDateTimeStamp +{ + protected static $_month_normal = array("",31,28,31,30,31,30,31,31,30,31,30,31); + protected static $_month_leaf = array("",31,29,31,30,31,30,31,31,30,31,30,31); + + /** + * Gets day of week, 0 = Sunday,... 6=Saturday. + * Algorithm from PEAR::Date_Calc + */ + public function getDayofWeek($year, $month, $day) + { + /* + Pope Gregory removed 10 days - October 5 to October 14 - from the year 1582 and + proclaimed that from that time onwards 3 days would be dropped from the calendar + every 400 years. + + Thursday, October 4, 1582 (Julian) was followed immediately by Friday, October 15, 1582 (Gregorian). + */ + if ($year <= 1582) + { + if ($year < 1582 || + ($year == 1582 && ($month < 10 || ($month == 10 && $day < 15)))) + { + $greg_correction = 3; + } + else + { + $greg_correction = 0; + } + } + else + { + $greg_correction = 0; + } + + if($month > 2) + $month -= 2; + else + { + $month += 10; + $year--; + } + + $day = floor((13 * $month - 1) / 5) + + $day + ($year % 100) + + floor(($year % 100) / 4) + + floor(($year / 100) / 4) - 2 * + floor($year / 100) + 77 + $greg_correction; + + return $day - 7 * floor($day / 7); + } + + /** + * Checks for leap year, returns true if it is. No 2-digit year check. Also + * handles julian calendar correctly. + * @param float year to check + * @return boolean true if is leap year + */ + public function isLeapYear($year) + { + $year = $this->digitCheck($year); + if ($year % 4 != 0) + return false; + + if ($year % 400 == 0) + return true; + // if gregorian calendar (>1582), century not-divisible by 400 is not leap + else if ($year > 1582 && $year % 100 == 0 ) + return false; + return true; + } + + /** + * Fix 2-digit years. Works for any century. + * Assumes that if 2-digit is more than 30 years in future, then previous century. + * @return integer change two digit year into multiple digits + */ + protected function digitCheck($y) + { + if ($y < 100){ + $yr = (integer) date("Y"); + $century = (integer) ($yr /100); + + if ($yr%100 > 50) { + $c1 = $century + 1; + $c0 = $century; + } else { + $c1 = $century; + $c0 = $century - 1; + } + $c1 *= 100; + // if 2-digit year is less than 30 years in future, set it to this century + // otherwise if more than 30 years in future, then we set 2-digit year to the prev century. + if (($y + $c1) < $yr+30) $y = $y + $c1; + else $y = $y + $c0*100; + } + return $y; + } + + public function get4DigitYear($y) + { + return $this->digitCheck($y); + } + + /** + * @return integer get local time zone offset from GMT + */ + public function getGMTDiff() + { + static $TZ; + if (isset($TZ)) return $TZ; + + $TZ = mktime(0,0,0,1,2,1970) - gmmktime(0,0,0,1,2,1970); + return $TZ; + } + + /** + * @return array an array with date info. + */ + function getDate($d=false,$fast=false) + { + if ($d === false) return getdate(); + // check if number in 32-bit signed range + if ((abs($d) <= 0x7FFFFFFF)) + { + if (!defined('ADODB_NO_NEGATIVE_TS') || $d >= 0) // if windows, must be +ve integer + return @getdate($d); + } + return $this->_getDateInternal($d); + } + + /** + * Low-level function that returns the getdate() array. We have a special + * $fast flag, which if set to true, will return fewer array values, + * and is much faster as it does not calculate dow, etc. + * @param float orginal date + * @param boolean false to compute the day of the week, default is true + * @param boolean true to calculate the GMT dates + * @return array an array with date info. + */ + protected function _getDateInternal($origd=false,$fast=true,$is_gmt=false) + { + static $YRS; + + $d = $origd - ($is_gmt ? 0 : $this->getGMTDiff()); + + $_day_power = 86400; + $_hour_power = 3600; + $_min_power = 60; + + if ($d < -12219321600) + $d -= 86400*10; // if 15 Oct 1582 or earlier, gregorian correction + + $_month_table_normal =& self::$_month_normal; + $_month_table_leaf = & self::$_month_leaf; + + $d366 = $_day_power * 366; + $d365 = $_day_power * 365; + + if ($d < 0) + { + if (empty($YRS)) + $YRS = array( + 1970 => 0, + 1960 => -315619200, + 1950 => -631152000, + 1940 => -946771200, + 1930 => -1262304000, + 1920 => -1577923200, + 1910 => -1893456000, + 1900 => -2208988800, + 1890 => -2524521600, + 1880 => -2840140800, + 1870 => -3155673600, + 1860 => -3471292800, + 1850 => -3786825600, + 1840 => -4102444800, + 1830 => -4417977600, + 1820 => -4733596800, + 1810 => -5049129600, + 1800 => -5364662400, + 1790 => -5680195200, + 1780 => -5995814400, + 1770 => -6311347200, + 1760 => -6626966400, + 1750 => -6942499200, + 1740 => -7258118400, + 1730 => -7573651200, + 1720 => -7889270400, + 1710 => -8204803200, + 1700 => -8520336000, + 1690 => -8835868800, + 1680 => -9151488000, + 1670 => -9467020800, + 1660 => -9782640000, + 1650 => -10098172800, + 1640 => -10413792000, + 1630 => -10729324800, + 1620 => -11044944000, + 1610 => -11360476800, + 1600 => -11676096000); + + if ($is_gmt) + $origd = $d; + // The valid range of a 32bit signed timestamp is typically from + // Fri, 13 Dec 1901 20:45:54 GMT to Tue, 19 Jan 2038 03:14:07 GMT + // + + # old algorithm iterates through all years. new algorithm does it in + # 10 year blocks + + /* + # old algo + for ($a = 1970 ; --$a >= 0;) { + $lastd = $d; + + if ($leaf = _adodb_is_leap_year($a)) $d += $d366; + else $d += $d365; + + if ($d >= 0) { + $year = $a; + break; + } + } + */ + + $lastsecs = 0; + $lastyear = 1970; + foreach($YRS as $year => $secs) + { + if ($d >= $secs) + { + $a = $lastyear; + break; + } + $lastsecs = $secs; + $lastyear = $year; + } + + $d -= $lastsecs; + if (!isset($a)) $a = $lastyear; + + //echo ' yr=',$a,' ', $d,'.'; + + for (; --$a >= 0;) + { + $lastd = $d; + + if ($leaf = $this->isLeapYear($a)) + $d += $d366; + else + $d += $d365; + + if ($d >= 0) + { + $year = $a; + break; + } + } + /**/ + + $secsInYear = 86400 * ($leaf ? 366 : 365) + $lastd; + + $d = $lastd; + $mtab = ($leaf) ? $_month_table_leaf : $_month_table_normal; + for ($a = 13 ; --$a > 0;) + { + $lastd = $d; + $d += $mtab[$a] * $_day_power; + if ($d >= 0) + { + $month = $a; + $ndays = $mtab[$a]; + break; + } + } + + $d = $lastd; + $day = $ndays + ceil(($d+1) / ($_day_power)); + + $d += ($ndays - $day+1)* $_day_power; + $hour = floor($d/$_hour_power); + + } else { + for ($a = 1970 ;; $a++) + { + $lastd = $d; + + if ($leaf = $this->isLeapYear($a)) $d -= $d366; + else $d -= $d365; + if ($d < 0) + { + $year = $a; + break; + } + } + $secsInYear = $lastd; + $d = $lastd; + $mtab = ($leaf) ? $_month_table_leaf : $_month_table_normal; + for ($a = 1 ; $a <= 12; $a++) + { + $lastd = $d; + $d -= $mtab[$a] * $_day_power; + if ($d < 0) + { + $month = $a; + $ndays = $mtab[$a]; + break; + } + } + $d = $lastd; + $day = ceil(($d+1) / $_day_power); + $d = $d - ($day-1) * $_day_power; + $hour = floor($d /$_hour_power); + } + + $d -= $hour * $_hour_power; + $min = floor($d/$_min_power); + $secs = $d - $min * $_min_power; + if ($fast) + { + return array( + 'seconds' => $secs, + 'minutes' => $min, + 'hours' => $hour, + 'mday' => $day, + 'mon' => $month, + 'year' => $year, + 'yday' => floor($secsInYear/$_day_power), + 'leap' => $leaf, + 'ndays' => $ndays + ); + } + + + $dow = $this->getDayofWeek($year,$month,$day); + + return array( + 'seconds' => $secs, + 'minutes' => $min, + 'hours' => $hour, + 'mday' => $day, + 'wday' => $dow, + 'mon' => $month, + 'year' => $year, + 'yday' => floor($secsInYear/$_day_power), + 'weekday' => gmdate('l',$_day_power*(3+$dow)), + 'month' => gmdate('F',mktime(0,0,0,$month,2,1971)), + 0 => $origd + ); + } + + /** + * @return boolean true if valid date, semantic check only. + */ + public function isValidDate($y,$m,$d) + { + if ($this->isLeapYear($y)) + $marr =& self::$_month_leaf; + else + $marr =& self::$_month_normal; + + if ($m > 12 || $m < 1) return false; + + if ($d > 31 || $d < 1) return false; + + if ($marr[$m] < $d) return false; + + if ($y < 1000 && $y > 3000) return false; + + return true; + } + + /** + * @return string formatted date based on timestamp $d + */ + function formatDate($fmt,$d=false,$is_gmt=false) + { + if ($d === false) + return ($is_gmt)? @gmdate($fmt): @date($fmt); + + // check if number in 32-bit signed range + if ((abs($d) <= 0x7FFFFFFF)) + { + // if windows, must be +ve integer + if (!defined('ADODB_NO_NEGATIVE_TS') || $d >= 0) + return ($is_gmt)? @gmdate($fmt,$d): @date($fmt,$d); + } + + $_day_power = 86400; + + $arr = $this->getDate($d,true,$is_gmt); + + $year = $arr['year']; + $month = $arr['mon']; + $day = $arr['mday']; + $hour = $arr['hours']; + $min = $arr['minutes']; + $secs = $arr['seconds']; + + $max = strlen($fmt); + $dates = ''; + + $isphp5 = PHP_VERSION >= 5; + + /* + at this point, we have the following integer vars to manipulate: + $year, $month, $day, $hour, $min, $secs + */ + for ($i=0; $i < $max; $i++) + { + switch($fmt[$i]) + { + case 'T': $dates .= date('T');break; + // YEAR + case 'L': $dates .= $arr['leap'] ? '1' : '0'; break; + case 'r': // Thu, 21 Dec 2000 16:01:07 +0200 + + // 4.3.11 uses '04 Jun 2004' + // 4.3.8 uses ' 4 Jun 2004' + $dates .= gmdate('D',$_day_power*(3+$this->getDayOfWeek($year,$month,$day))).', ' + . ($day<10?'0'.$day:$day) . ' '.date('M',mktime(0,0,0,$month,2,1971)).' '.$year.' '; + + if ($hour < 10) $dates .= '0'.$hour; else $dates .= $hour; + + if ($min < 10) $dates .= ':0'.$min; else $dates .= ':'.$min; + + if ($secs < 10) $dates .= ':0'.$secs; else $dates .= ':'.$secs; + + $gmt = $this->getGMTDiff(); + if ($isphp5) + $dates .= sprintf(' %s%04d',($gmt<=0)?'+':'-',abs($gmt)/36); + else + $dates .= sprintf(' %s%04d',($gmt<0)?'+':'-',abs($gmt)/36); + break; + + case 'Y': $dates .= $year; break; + case 'y': $dates .= substr($year,strlen($year)-2,2); break; + // MONTH + case 'm': if ($month<10) $dates .= '0'.$month; else $dates .= $month; break; + case 'Q': $dates .= ($month+3)>>2; break; + case 'n': $dates .= $month; break; + case 'M': $dates .= date('M',mktime(0,0,0,$month,2,1971)); break; + case 'F': $dates .= date('F',mktime(0,0,0,$month,2,1971)); break; + // DAY + case 't': $dates .= $arr['ndays']; break; + case 'z': $dates .= $arr['yday']; break; + case 'w': $dates .= $this->getDayOfWeek($year,$month,$day); break; + case 'l': $dates .= gmdate('l',$_day_power*(3+$this->getDayOfWeek($year,$month,$day))); break; + case 'D': $dates .= gmdate('D',$_day_power*(3+$this->getDayOfWeek($year,$month,$day))); break; + case 'j': $dates .= $day; break; + case 'd': if ($day<10) $dates .= '0'.$day; else $dates .= $day; break; + case 'S': + $d10 = $day % 10; + if ($d10 == 1) $dates .= 'st'; + else if ($d10 == 2 && $day != 12) $dates .= 'nd'; + else if ($d10 == 3) $dates .= 'rd'; + else $dates .= 'th'; + break; + + // HOUR + case 'Z': + $dates .= ($is_gmt) ? 0 : -$this->getGMTDiff(); break; + case 'O': + $gmt = ($is_gmt) ? 0 : $this->getGMTDiff(); + + if ($isphp5) + $dates .= sprintf('%s%04d',($gmt<=0)?'+':'-',abs($gmt)/36); + else + $dates .= sprintf('%s%04d',($gmt<0)?'+':'-',abs($gmt)/36); + break; + + case 'H': + if ($hour < 10) $dates .= '0'.$hour; + else $dates .= $hour; + break; + case 'h': + if ($hour > 12) $hh = $hour - 12; + else { + if ($hour == 0) $hh = '12'; + else $hh = $hour; + } + + if ($hh < 10) $dates .= '0'.$hh; + else $dates .= $hh; + break; + + case 'G': + $dates .= $hour; + break; + + case 'g': + if ($hour > 12) $hh = $hour - 12; + else { + if ($hour == 0) $hh = '12'; + else $hh = $hour; + } + $dates .= $hh; + break; + // MINUTES + case 'i': if ($min < 10) $dates .= '0'.$min; else $dates .= $min; break; + // SECONDS + case 'U': $dates .= $d; break; + case 's': if ($secs < 10) $dates .= '0'.$secs; else $dates .= $secs; break; + // AM/PM + // Note 00:00 to 11:59 is AM, while 12:00 to 23:59 is PM + case 'a': + if ($hour>=12) $dates .= 'pm'; + else $dates .= 'am'; + break; + case 'A': + if ($hour>=12) $dates .= 'PM'; + else $dates .= 'AM'; + break; + default: + $dates .= $fmt[$i]; break; + // ESCAPE + case "\\": + $i++; + if ($i < $max) $dates .= $fmt[$i]; + break; + } + } + return $dates; + } + + /** + * Not a very fast algorithm - O(n) operation. Could be optimized to O(1). + * @return integer|float a timestamp given a local time. Originally by jackbbs. + */ + function getTimeStamp($hr,$min,$sec,$mon=false,$day=false,$year=false,$is_gmt=false) + { + + if ($mon === false) + return $is_gmt? @gmmktime($hr,$min,$sec): @mktime($hr,$min,$sec); + + // for windows, we don't check 1970 because with timezone differences, + // 1 Jan 1970 could generate negative timestamp, which is illegal + if (1971 <= $year && $year < 2038 || !defined('ADODB_NO_NEGATIVE_TS') + && (1901 < $year && $year < 2038)) + { + return $is_gmt ? @gmmktime($hr,$min,$sec,$mon,$day,$year) + : @mktime($hr,$min,$sec,$mon,$day,$year); + } + + $gmt_different = ($is_gmt) ? 0 : $this->getGMTDiff(); + + /* + # disabled because some people place large values in $sec. + # however we need it for $mon because we use an array... + $hr = intval($hr); + $min = intval($min); + $sec = intval($sec); + */ + $mon = intval($mon); + $day = intval($day); + $year = intval($year); + + + $year = $this->digitCheck($year); + + if ($mon > 12) + { + $y = floor($mon / 12); + $year += $y; + $mon -= $y*12; + } + else if ($mon < 1) + { + $y = ceil((1-$mon) / 12); + $year -= $y; + $mon += $y*12; + } + + $_day_power = 86400; + $_hour_power = 3600; + $_min_power = 60; + + $_month_table_normal = & self::$_month_normal; + $_month_table_leaf = & self::$_month_leaf; + + $_total_date = 0; + if ($year >= 1970) + { + for ($a = 1970 ; $a <= $year; $a++) + { + $leaf = $this->isLeapYear($a); + if ($leaf == true) { + $loop_table = $_month_table_leaf; + $_add_date = 366; + } else { + $loop_table = $_month_table_normal; + $_add_date = 365; + } + if ($a < $year) { + $_total_date += $_add_date; + } else { + for($b=1;$b<$mon;$b++) { + $_total_date += $loop_table[$b]; + } + } + } + $_total_date +=$day-1; + $ret = $_total_date * $_day_power + $hr * $_hour_power + $min * $_min_power + $sec + $gmt_different; + + } else { + for ($a = 1969 ; $a >= $year; $a--) { + $leaf = $this->isLeapYear($a); + if ($leaf == true) { + $loop_table = $_month_table_leaf; + $_add_date = 366; + } else { + $loop_table = $_month_table_normal; + $_add_date = 365; + } + if ($a > $year) { $_total_date += $_add_date; + } else { + for($b=12;$b>$mon;$b--) { + $_total_date += $loop_table[$b]; + } + } + } + $_total_date += $loop_table[$mon] - $day; + + $_day_time = $hr * $_hour_power + $min * $_min_power + $sec; + $_day_time = $_day_power - $_day_time; + $ret = -( $_total_date * $_day_power + $_day_time - $gmt_different); + if ($ret < -12220185600) $ret += 10*86400; // if earlier than 5 Oct 1582 - gregorian correction + else if ($ret < -12219321600) $ret = -12219321600; // if in limbo, reset to 15 Oct 1582. + } + //print " dmy=$day/$mon/$year $hr:$min:$sec => " .$ret; + return $ret; + } +} + +?> \ No newline at end of file diff --git a/framework/Util/TSimpleDateFormatter.php b/framework/Util/TSimpleDateFormatter.php index 03ae7b7d..9c2975d5 100644 --- a/framework/Util/TSimpleDateFormatter.php +++ b/framework/Util/TSimpleDateFormatter.php @@ -168,12 +168,15 @@ class TSimpleDateFormatter /** * Gets the time stamp from string or integer. * @param string|int date to parse - * @return int parsed date time stamp + * @return array date info array */ private function getDate($value) { - if(is_int($value)) - return @getdate($value); + if(!is_string($value)) + { + $s = Prado::createComponent('System.Util.TDateTimeStamp'); + return $s->getDate($value); + } $date = @strtotime($value); if($date < 0) throw new TInvalidDataValueException('invalid_date', $value); @@ -199,7 +202,7 @@ class TSimpleDateFormatter */ public function parse($value,$defaultToCurrentTime=true) { - if(is_int($value)) + if(is_int($value) || is_float($value)) return $value; else if(!is_string($value)) throw new TInvalidDataValueException('date_to_parse_must_be_string', $value); @@ -303,7 +306,8 @@ class TSimpleDateFormatter else { $day = intval($day) <= 0 ? 1 : intval($day); - return @mktime(0, 0, 0, $month, $day, $year); + $s = Prado::createComponent('System.Util.TDateTimeStamp'); + return $s->getTimeStamp(0, 0, 0, $month, $day, $year); } } -- cgit v1.2.3