From: moodler Date: Mon, 26 May 2003 02:44:29 +0000 (+0000) Subject: Removed funny line feeds? Hope so. X-Git-Url: http://git.mjollnir.org/gw?a=commitdiff_plain;h=644f6213f151e1c6cae9f5c2ba559cfe06c7e127;p=moodle.git Removed funny line feeds? Hope so. --- diff --git a/lib/adodb/adodb-time.inc.php b/lib/adodb/adodb-time.inc.php index 7babda41a9..97faaf801f 100644 --- a/lib/adodb/adodb-time.inc.php +++ b/lib/adodb/adodb-time.inc.php @@ -1,869 +1,868 @@ - 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 adodb_mktime(). - -This library replaces native functions as follows: - -
	
-	getdate()  with  adodb_getdate()
-	date()     with  adodb_date() 
-	gmdate()   with  adodb_gmdate()
-	mktime()   with  adodb_mktime()
-	gmmktime() with  adodb_gmmktime()45
-
- -The parameters are identical, except that adodb_date() accepts a subset -of date()'s field formats. Mktime() will convert from local time to GMT, -and date() will convert from GMT to local time, but daylight savings is -not handled currently. - -This library is independant of the rest of ADOdb, and can be used -as standalone code. - -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. - -GREGORIAN CORRECTION - -Pope Gregory shortened October of A.D. 1582 by ten days. Thursday, -October 4, 1582 (Julian) was followed immediately by Friday, October 15, -1582 (Gregorian). - -Since 0.06, we handle this correctly, so: - -adodb_mktime(0,0,0,10,15,1582) - adodb_mktime(0,0,0,10,4,1582) - == 24 * 3600 (1 day) - -============================================================================= - -COPYRIGHT - -(c) 2003 John Lim and released under BSD-style license except for code by jackbbs, -which includes adodb_mktime, adodb_get_gmt_different, adodb_is_leap_year -and originally found at http://www.php.net/manual/en/function.mktime.php - -============================================================================= - -BUG REPORTS - -These should be posted to the ADOdb forums at - - http://phplens.com/lens/lensforum/topics.php?id=4 - -============================================================================= - -FUNCTION DESCRIPTIONS - - -FUNCTION adodb_getdate($date=false) - -Returns an array containing date information, as getdate(), but supports -dates greater than 1901 to 2038. - - -FUNCTION adodb_date($fmt, $timestamp = false) - -Convert a timestamp to a formatted local date. If $timestamp is not defined, the -current timestamp is used. Unlike the function date(), it supports dates -outside the 1901 to 2038 range. - -The format fields that adodb_date supports: - -
-a - "am" or "pm" 
-A - "AM" or "PM" 
-d - day of the month, 2 digits with leading zeros; i.e. "01" to "31" 
-D - day of the week, textual, 3 letters; e.g. "Fri" 
-F - month, textual, long; e.g. "January" 
-g - hour, 12-hour format without leading zeros; i.e. "1" to "12" 
-G - hour, 24-hour format without leading zeros; i.e. "0" to "23" 
-h - hour, 12-hour format; i.e. "01" to "12" 
-H - hour, 24-hour format; i.e. "00" to "23" 
-i - minutes; i.e. "00" to "59" 
-j - day of the month without leading zeros; i.e. "1" to "31" 
-l (lowercase 'L') - day of the week, textual, long; e.g. "Friday"  
-L - boolean for whether it is a leap year; i.e. "0" or "1" 
-m - month; i.e. "01" to "12" 
-M - month, textual, 3 letters; e.g. "Jan" 
-n - month without leading zeros; i.e. "1" to "12" 
-O - Difference to Greenwich time in hours; e.g. "+0200" 
-r - RFC 822 formatted date; e.g. "Thu, 21 Dec 2000 16:01:07 +0200" 
-s - seconds; i.e. "00" to "59" 
-S - English ordinal suffix for the day of the month, 2 characters; 
-   			i.e. "st", "nd", "rd" or "th" 
-t - number of days in the given month; i.e. "28" to "31"
-T - Timezone setting of this machine; e.g. "EST" or "MDT" 
-U - seconds since the Unix Epoch (January 1 1970 00:00:00 GMT)  
-w - day of the week, numeric, i.e. "0" (Sunday) to "6" (Saturday) 
-Y - year, 4 digits; e.g. "1999" 
-y - year, 2 digits; e.g. "99" 
-z - day of the year; i.e. "0" to "365" 
-Z - timezone offset in seconds (i.e. "-43200" to "43200"). 
-   			The offset for timezones west of UTC is always negative, 
-			and for those east of UTC is always positive. 
-
- -Unsupported: -
-B - Swatch Internet time 
-I (capital i) - "1" if Daylight Savings Time, "0" otherwise.
-W - ISO-8601 week number of year, weeks starting on Monday 
-
-
- - -FUNCTION adodb_gmdate($fmt, $timestamp = false) - -Convert a timestamp to a formatted GMT date. If $timestamp is not defined, the -current timestamp is used. Unlike the function date(), it supports dates -outside the 1901 to 2038 range. - - -FUNCTION adodb_mktime($hr, $min, $sec, $month, $day, $year) - -Converts a local date to a unix timestamp. Unlike the function mktime(), it supports -dates outside the 1901 to 2038 range. Differs from mktime() in that all parameters -are currently compulsory. - -FUNCTION adodb_gmmktime($hr, $min, $sec, $month, $day, $year) - -Converts a gmt date to a unix timestamp. Unlike the function gmmktime(), it supports -dates outside the 1901 to 2038 range. Differs from gmmktime() in that all parameters -are currently compulsory. - -============================================================================= - -NOTES - -Useful url for generating test timestamps: - http://www.4webhelp.net/us/timestamp.php - -Possible future optimizations include - -a. Using an algorithm similar to Plauger's in "The Standard C Library" -(page 428, xttotm.c _Ttotm() function). Plauger's algorithm will not -work outside 32-bit signed range, so i decided not to implement it. - -b. Iterate over a block of years (say 12) when searching for the -correct year. - -c. Implement daylight savings, which looks awfully complicated, see - http://webexhibits.org/daylightsaving/ - - -CHANGELOG -- 3 March 2003 0.08 -Added support for 'S' adodb_date() format char. Added constant ADODB_ALLOW_NEGATIVE_TS -if you want PHP to handle negative timestamps between 1901 to 1969. - -- 27 Feb 2003 0.07 -All negative numbers handled by adodb now because of RH 7.3+ problems. -See http://bugs.php.net/bug.php?id=20048&edit=2 - -- 4 Feb 2003 0.06 -Fixed a typo, 1852 changed to 1582! This means that pre-1852 dates -are now correctly handled. - -- 29 Jan 2003 0.05 - -Leap year checking differs under Julian calendar (pre 1582). Also -leap year code optimized by checking for most common case first. - -We also handle month overflow correctly in mktime (eg month set to 13). - -Day overflow for less than one month's days is supported. - -- 28 Jan 2003 0.04 - -Gregorian correction handled. In PHP5, we might throw an error if -mktime uses invalid dates around 5-14 Oct 1582. Released with ADOdb 3.10. -Added limbo 5-14 Oct 1582 check, when we set to 15 Oct 1582. - -- 27 Jan 2003 0.03 - -Fixed some more month problems due to gmt issues. Added constant ADODB_DATE_VERSION. -Fixed calculation of days since start of year for <1970. - -- 27 Jan 2003 0.02 - -Changed _adodb_getdate() to inline leap year checking for better performance. -Fixed problem with time-zones west of GMT +0000. - -- 24 Jan 2003 0.01 - -First implementation. -*/ - - -/* Initialization */ - -/* - Version Number -*/ -define('ADODB_DATE_VERSION',0.08); - -/* - We check for Windows as only +ve ints are accepted as dates on Windows. - - 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); - -function adodb_date_test_date($y1,$m) -{ - //print " $y1/$m "; - $t = adodb_mktime(0,0,0,$m,13,$y1); - if ("$y1-$m-13 00:00:00" != adodb_date('Y-n-d H:i:s',$t)) { - print "$y1 error
"; - return false; - } - return true; -} -/** - Test Suite -*/ -function adodb_date_test() -{ - - error_reporting(E_ALL); - print "

Testing adodb_date and adodb_mktime. version=".ADODB_DATE_VERSION. "

"; - set_time_limit(0); - $fail = false; - - // This flag disables calling of PHP native functions, so we can properly test the code - if (!defined('ADODB_TEST_DATES')) define('ADODB_TEST_DATES',1); - - print "

Testing gregorian <=> julian conversion

"; - $t = adodb_mktime(0,0,0,10,11,1492); - //http://www.holidayorigins.com/html/columbus_day.html - Friday check - if (!(adodb_date('D Y-m-d',$t) == 'Fri 1492-10-11')) print 'Error in Columbus landing
'; - - $t = adodb_mktime(0,0,0,2,29,1500); - if (!(adodb_date('Y-m-d',$t) == '1500-02-29')) print 'Error in julian leap years
'; - - $t = adodb_mktime(0,0,0,2,29,1700); - if (!(adodb_date('Y-m-d',$t) == '1700-03-01')) print 'Error in gregorian leap years
'; - - print adodb_mktime(0,0,0,10,4,1582).' '; - print adodb_mktime(0,0,0,10,15,1582); - $diff = (adodb_mktime(0,0,0,10,15,1582) - adodb_mktime(0,0,0,10,4,1582)); - if ($diff != 3600*24) print " Error in gregorian correction = ".($diff/3600/24)." days
"; - - print " 15 Oct 1582, Fri=".(adodb_dow(1582,10,15) == 5 ? 'Fri' : 'Error')."
"; - print " 4 Oct 1582, Thu=".(adodb_dow(1582,10,4) == 4 ? 'Thu' : 'Error')."
"; - - print "

Testing overflow

"; - - $t = adodb_mktime(0,0,0,3,33,1965); - if (!(adodb_date('Y-m-d',$t) == '1965-04-02')) print 'Error in day overflow 1
'; - $t = adodb_mktime(0,0,0,4,33,1971); - if (!(adodb_date('Y-m-d',$t) == '1971-05-03')) print 'Error in day overflow 2
'; - $t = adodb_mktime(0,0,0,1,60,1965); - if (!(adodb_date('Y-m-d',$t) == '1965-03-01')) print 'Error in day overflow 3 '.adodb_date('Y-m-d',$t).'
'; - $t = adodb_mktime(0,0,0,12,32,1965); - if (!(adodb_date('Y-m-d',$t) == '1966-01-01')) print 'Error in day overflow 4 '.adodb_date('Y-m-d',$t).'
'; - $t = adodb_mktime(0,0,0,12,63,1965); - if (!(adodb_date('Y-m-d',$t) == '1966-02-01')) print 'Error in day overflow 5 '.adodb_date('Y-m-d',$t).'
'; - $t = adodb_mktime(0,0,0,13,3,1965); - if (!(adodb_date('Y-m-d',$t) == '1966-01-03')) print 'Error in mth overflow 1
'; - - print "Testing 2-digit => 4-digit year conversion

"; - if (adodb_year_digit_check(00) != 2000) print "Err 2-digit 2000
"; - if (adodb_year_digit_check(10) != 2010) print "Err 2-digit 2010
"; - if (adodb_year_digit_check(20) != 2020) print "Err 2-digit 2020
"; - if (adodb_year_digit_check(30) != 2030) print "Err 2-digit 2030
"; - if (adodb_year_digit_check(40) != 1940) print "Err 2-digit 1940
"; - if (adodb_year_digit_check(50) != 1950) print "Err 2-digit 1950
"; - if (adodb_year_digit_check(90) != 1990) print "Err 2-digit 1990
"; - - // Test string formating - print "

Testing date formating

"; - $fmt = '\d\a\t\e T Y-m-d H:i:s a A d D F g G h H i j l L m M n O \R\F\C822 r s t U w y Y z Z 2003'; - $s1 = date($fmt,0); - $s2 = adodb_date($fmt,0); - if ($s1 != $s2) { - print " date() 0 failed
$s1
$s2
"; - } - flush(); - for ($i=100; --$i > 0; ) { - - $ts = 3600.0*((rand()%60000)+(rand()%60000))+(rand()%60000); - $s1 = date($fmt,$ts); - $s2 = adodb_date($fmt,$ts); - //print "$s1
$s2

"; - $pos = strcmp($s1,$s2); - - if (($s1) != ($s2)) { - for ($j=0,$k=strlen($s1); $j < $k; $j++) { - if ($s1[$j] != $s2[$j]) { - print substr($s1,$j).' '; - break; - } - } - print "Error date(): $ts

 
-  \"$s1\" (date len=".strlen($s1).")
-  \"$s2\" (adodb_date len=".strlen($s2).")

"; - $fail = true; - } - - $a1 = getdate($ts); - $a2 = adodb_getdate($ts); - $rez = array_diff($a1,$a2); - if (sizeof($rez)>0) { - print "Error getdate() $ts
"; - print_r($a1); - print "
"; - print_r($a2); - print "

"; - $fail = true; - } - } - - // Test generation of dates outside 1901-2038 - print "

Testing random dates between 100 and 4000

"; - adodb_date_test_date(100,1); - for ($i=100; --$i >= 0;) { - $y1 = 100+rand(0,1970-100); - $m = rand(1,12); - adodb_date_test_date($y1,$m); - - $y1 = 3000-rand(0,3000-1970); - adodb_date_test_date($y1,$m); - } - print '

'; - $start = 1960+rand(0,10); - $yrs = 12; - $i = 365.25*86400*($start-1970); - $offset = 36000+rand(10000,60000); - $max = 365*$yrs*86400; - $lastyear = 0; - - // we generate a timestamp, convert it to a date, and convert it back to a timestamp - // and check if the roundtrip broke the original timestamp value. - print "Testing $start to ".($start+$yrs).", or $max seconds, offset=$offset: "; - - for ($max += $i; $i < $max; $i += $offset) { - $ret = adodb_date('m,d,Y,H,i,s',$i); - $arr = explode(',',$ret); - if ($lastyear != $arr[2]) { - $lastyear = $arr[2]; - print " $lastyear "; - flush(); - } - $newi = adodb_mktime($arr[3],$arr[4],$arr[5],$arr[0],$arr[1],$arr[2]); - if ($i != $newi) { - print "Error at $i, adodb_mktime returned $newi ($ret)"; - $fail = true; - break; - } - } - - if (!$fail) print "

Passed !

"; - else print "

Failed :-(

"; -} - -/** - Returns day of week, 0 = Sunday,... 6=Saturday. - Algorithm from PEAR::Date_Calc -*/ -function adodb_dow($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($year / 100) + 77); - - return (($day - 7 * floor($day / 7))) + $greg_correction; -} - - -/** - Checks for leap year, returns true if it is. No 2-digit year check. Also - handles julian calendar correctly. -*/ -function _adodb_is_leap_year($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 && $year % 100 == 0 ) { - return false; - } - - return true; -} - -/** - checks for leap year, returns true if it is. Has 2-digit year check -*/ -function adodb_is_leap_year($year) -{ - return _adodb_is_leap_year(adodb_year_digit_check($year)); -} - -/** - Fix 2-digit years. Works for any century. - Assumes that if 2-digit is more than 30 years in future, then previous century. -*/ -function adodb_year_digit_check($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; -} - -/** - get local time zone offset from GMT -*/ -function adodb_get_gmt_different() -{ -static $DIFF; - if (isset($DIFF)) return $DIFF; - - $DIFF = mktime(0,0,0,1,2,1970) - gmmktime(0,0,0,1,2,1970); - return $DIFF; -} - -/** - Returns an array with date info. -*/ -function adodb_getdate($d=false,$fast=false) -{ - if ($d === false) return getdate(); - if (!defined('ADODB_TEST_DATES')) { - if ((abs($d) <= 0x7FFFFFFF)) { // check if number in 32-bit signed range - if (!defined('ADODB_NO_NEGATIVE_TS') || $d >= 0) // if windows, must be +ve integer - return @getdate($d); - } - } - return _adodb_getdate($d); -} - -/** - Low-level function that returns the getdate() array. We have a special - $fast flag, which if set to true, will return fewer array values, - and is much faster as it does not calculate dow, etc. -*/ -function _adodb_getdate($origd=false,$fast=false,$is_gmt=false) -{ - $d = $origd - ($is_gmt ? 0 : adodb_get_gmt_different()); - - $_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 = array("",31,28,31,30,31,30,31,31,30,31,30,31); - $_month_table_leaf = array("",31,29,31,30,31,30,31,31,30,31,30,31); - - if ($d < 0) { - $origd = $d; - // The valid range of a 32bit signed timestamp is typically from - // Fri, 13 Dec 1901 20:45:54 GMT to Tue, 19 Jan 2038 03:14:07 GMT - for ($a = 1970 ; --$a >= 0;) { - $lastd = $d; - - if ($leaf = _adodb_is_leap_year($a)) { - $d += $_day_power * 366; - } else - $d += $_day_power * 365; - if ($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 = _adodb_is_leap_year($a)) { - $d -= $_day_power * 366; - } else - $d -= $_day_power * 365; - if ($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 - ); - } - - - $dow = adodb_dow($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 => $origd - ); -} - -function adodb_gmdate($fmt,$d=false) -{ - return adodb_date($fmt,$d,true); -} - - -/** - Return formatted date based on timestamp $d -*/ -function adodb_date($fmt,$d=false,$is_gmt=false) -{ - if ($d === false) return date($fmt); - if (!defined('ADODB_TEST_DATES')) { - if ((abs($d) <= 0x7FFFFFFF)) { // check if number in 32-bit signed range - if (!defined('ADODB_NO_NEGATIVE_TS') || $d >= 0) // if windows, must be +ve integer - return @date($fmt,$d); - } - } - $_day_power = 86400; - - $arr = _adodb_getdate($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 = ''; - - /* - 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',100000);break; - // YEAR - case 'L': $dates .= $arr['leap'] ? '1' : '0'; break; - case 'r': // Thu, 21 Dec 2000 16:01:07 +0200 - - $dates .= gmdate('D',$_day_power*(3+adodb_dow($year,$month,$day))).', ' - . ($day<10?' '.$day:$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 = adodb_get_gmt_different(); - $dates .= sprintf(' %s%04d',($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 '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': $dates .= adodb_dow($year,$month,$day); break; - case 'l': $dates .= gmdate('l',$_day_power*(3+adodb_dow($year,$month,$day))); break; - case 'D': $dates .= gmdate('D',$_day_power*(3+adodb_dow($year,$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) $dates .= 'nd'; - else if ($d10 == 3) $dates .= 'rd'; - else $dates .= 'th'; - break; - - // HOUR - case 'Z': - $dates .= ($is_gmt) ? 0 : -adodb_get_gmt_different(); break; - case 'O': - $gmt = ($is_gmt) ? 0 : adodb_get_gmt_different(); - $dates .= sprintf('%s%04d',($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; -} - -/** - Returns a timestamp given a GMT/UTC time. - Note that $is_dst is not implemented and is ignored. -*/ -function adodb_gmmktime($hr,$min,$sec,$mon,$day,$year,$is_dst=false) -{ - return adodb_mktime($hr,$min,$sec,$mon,$day,$year,$is_dst,true); -} - -/** - Return a timestamp given a local time. Originally by jackbbs. - Note that $is_dst is not implemented and is ignored. -*/ -function adodb_mktime($hr,$min,$sec,$mon,$day,$year,$is_dst=false,$is_gmt=false) -{ - if (!defined('ADODB_TEST_DATES')) { - // for windows, we don't check 1970 because with timezone differences, - // 1 Jan 1970 could generate negative timestamp, which is illegal - if (!defined('ADODB_NO_NEGATIVE_TS') || ($year >= 1971)) - if (1901 < $year && $year < 2038) - return @mktime($hr,$min,$sec,$mon,$day,$year); - } - - $gmt_different = ($is_gmt) ? 0 : adodb_get_gmt_different(); - - $hr = intval($hr); - $min = intval($min); - $sec = intval($sec); - $mon = intval($mon); - $day = intval($day); - $year = intval($year); - - - $year = adodb_year_digit_check($year); - - if ($mon > 12) { - $y = floor($mon / 12); - $year += $y; - $mon -= $y*12; - } - - $_day_power = 86400; - $_hour_power = 3600; - $_min_power = 60; - - $_month_table_normal = array("",31,28,31,30,31,30,31,31,30,31,30,31); - $_month_table_leaf = array("",31,29,31,30,31,30,31,31,30,31,30,31); - - $_total_date = 0; - if ($year >= 1970) { - for ($a = 1970 ; $a <= $year; $a++) { - $leaf = _adodb_is_leap_year($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--) { - $leaf = _adodb_is_leap_year($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; -} - -?> + 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 adodb_mktime(). + +This library replaces native functions as follows: + +
	
+	getdate()  with  adodb_getdate()
+	date()     with  adodb_date() 
+	gmdate()   with  adodb_gmdate()
+	mktime()   with  adodb_mktime()
+	gmmktime() with  adodb_gmmktime()45
+
+ +The parameters are identical, except that adodb_date() accepts a subset +of date()'s field formats. Mktime() will convert from local time to GMT, +and date() will convert from GMT to local time, but daylight savings is +not handled currently. + +This library is independant of the rest of ADOdb, and can be used +as standalone code. + +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. + +GREGORIAN CORRECTION + +Pope Gregory shortened October of A.D. 1582 by ten days. Thursday, +October 4, 1582 (Julian) was followed immediately by Friday, October 15, +1582 (Gregorian). + +Since 0.06, we handle this correctly, so: + +adodb_mktime(0,0,0,10,15,1582) - adodb_mktime(0,0,0,10,4,1582) + == 24 * 3600 (1 day) + +============================================================================= + +COPYRIGHT + +(c) 2003 John Lim and released under BSD-style license except for code by jackbbs, +which includes adodb_mktime, adodb_get_gmt_different, adodb_is_leap_year +and originally found at http://www.php.net/manual/en/function.mktime.php + +============================================================================= + +BUG REPORTS + +These should be posted to the ADOdb forums at + + http://phplens.com/lens/lensforum/topics.php?id=4 + +============================================================================= + +FUNCTION DESCRIPTIONS + + +FUNCTION adodb_getdate($date=false) + +Returns an array containing date information, as getdate(), but supports +dates greater than 1901 to 2038. + + +FUNCTION adodb_date($fmt, $timestamp = false) + +Convert a timestamp to a formatted local date. If $timestamp is not defined, the +current timestamp is used. Unlike the function date(), it supports dates +outside the 1901 to 2038 range. + +The format fields that adodb_date supports: + +
+a - "am" or "pm" 
+A - "AM" or "PM" 
+d - day of the month, 2 digits with leading zeros; i.e. "01" to "31" 
+D - day of the week, textual, 3 letters; e.g. "Fri" 
+F - month, textual, long; e.g. "January" 
+g - hour, 12-hour format without leading zeros; i.e. "1" to "12" 
+G - hour, 24-hour format without leading zeros; i.e. "0" to "23" 
+h - hour, 12-hour format; i.e. "01" to "12" 
+H - hour, 24-hour format; i.e. "00" to "23" 
+i - minutes; i.e. "00" to "59" 
+j - day of the month without leading zeros; i.e. "1" to "31" 
+l (lowercase 'L') - day of the week, textual, long; e.g. "Friday"  
+L - boolean for whether it is a leap year; i.e. "0" or "1" 
+m - month; i.e. "01" to "12" 
+M - month, textual, 3 letters; e.g. "Jan" 
+n - month without leading zeros; i.e. "1" to "12" 
+O - Difference to Greenwich time in hours; e.g. "+0200" 
+r - RFC 822 formatted date; e.g. "Thu, 21 Dec 2000 16:01:07 +0200" 
+s - seconds; i.e. "00" to "59" 
+S - English ordinal suffix for the day of the month, 2 characters; 
+   			i.e. "st", "nd", "rd" or "th" 
+t - number of days in the given month; i.e. "28" to "31"
+T - Timezone setting of this machine; e.g. "EST" or "MDT" 
+U - seconds since the Unix Epoch (January 1 1970 00:00:00 GMT)  
+w - day of the week, numeric, i.e. "0" (Sunday) to "6" (Saturday) 
+Y - year, 4 digits; e.g. "1999" 
+y - year, 2 digits; e.g. "99" 
+z - day of the year; i.e. "0" to "365" 
+Z - timezone offset in seconds (i.e. "-43200" to "43200"). 
+   			The offset for timezones west of UTC is always negative, 
+			and for those east of UTC is always positive. 
+
+ +Unsupported: +
+B - Swatch Internet time 
+I (capital i) - "1" if Daylight Savings Time, "0" otherwise.
+W - ISO-8601 week number of year, weeks starting on Monday 
+
+
+ + +FUNCTION adodb_gmdate($fmt, $timestamp = false) + +Convert a timestamp to a formatted GMT date. If $timestamp is not defined, the +current timestamp is used. Unlike the function date(), it supports dates +outside the 1901 to 2038 range. + + +FUNCTION adodb_mktime($hr, $min, $sec, $month, $day, $year) + +Converts a local date to a unix timestamp. Unlike the function mktime(), it supports +dates outside the 1901 to 2038 range. Differs from mktime() in that all parameters +are currently compulsory. + +FUNCTION adodb_gmmktime($hr, $min, $sec, $month, $day, $year) + +Converts a gmt date to a unix timestamp. Unlike the function gmmktime(), it supports +dates outside the 1901 to 2038 range. Differs from gmmktime() in that all parameters +are currently compulsory. + +============================================================================= + +NOTES + +Useful url for generating test timestamps: + http://www.4webhelp.net/us/timestamp.php + +Possible future optimizations include + +a. Using an algorithm similar to Plauger's in "The Standard C Library" +(page 428, xttotm.c _Ttotm() function). Plauger's algorithm will not +work outside 32-bit signed range, so i decided not to implement it. + +b. Iterate over a block of years (say 12) when searching for the +correct year. + +c. Implement daylight savings, which looks awfully complicated, see + http://webexhibits.org/daylightsaving/ + + +CHANGELOG +- 3 March 2003 0.08 +Added support for 'S' adodb_date() format char. Added constant ADODB_ALLOW_NEGATIVE_TS +if you want PHP to handle negative timestamps between 1901 to 1969. + +- 27 Feb 2003 0.07 +All negative numbers handled by adodb now because of RH 7.3+ problems. +See http://bugs.php.net/bug.php?id=20048&edit=2 + +- 4 Feb 2003 0.06 +Fixed a typo, 1852 changed to 1582! This means that pre-1852 dates +are now correctly handled. + +- 29 Jan 2003 0.05 + +Leap year checking differs under Julian calendar (pre 1582). Also +leap year code optimized by checking for most common case first. + +We also handle month overflow correctly in mktime (eg month set to 13). + +Day overflow for less than one month's days is supported. + +- 28 Jan 2003 0.04 + +Gregorian correction handled. In PHP5, we might throw an error if +mktime uses invalid dates around 5-14 Oct 1582. Released with ADOdb 3.10. +Added limbo 5-14 Oct 1582 check, when we set to 15 Oct 1582. + +- 27 Jan 2003 0.03 + +Fixed some more month problems due to gmt issues. Added constant ADODB_DATE_VERSION. +Fixed calculation of days since start of year for <1970. + +- 27 Jan 2003 0.02 + +Changed _adodb_getdate() to inline leap year checking for better performance. +Fixed problem with time-zones west of GMT +0000. + +- 24 Jan 2003 0.01 + +First implementation. +*/ + + +/* Initialization */ + +/* + Version Number +*/ +define('ADODB_DATE_VERSION',0.08); + +/* + We check for Windows as only +ve ints are accepted as dates on Windows. + + 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); + +function adodb_date_test_date($y1,$m) +{ + //print " $y1/$m "; + $t = adodb_mktime(0,0,0,$m,13,$y1); + if ("$y1-$m-13 00:00:00" != adodb_date('Y-n-d H:i:s',$t)) { + print "$y1 error
"; + return false; + } + return true; +} +/** + Test Suite +*/ +function adodb_date_test() +{ + + error_reporting(E_ALL); + print "

Testing adodb_date and adodb_mktime. version=".ADODB_DATE_VERSION. "

"; + set_time_limit(0); + $fail = false; + + // This flag disables calling of PHP native functions, so we can properly test the code + if (!defined('ADODB_TEST_DATES')) define('ADODB_TEST_DATES',1); + + print "

Testing gregorian <=> julian conversion

"; + $t = adodb_mktime(0,0,0,10,11,1492); + //http://www.holidayorigins.com/html/columbus_day.html - Friday check + if (!(adodb_date('D Y-m-d',$t) == 'Fri 1492-10-11')) print 'Error in Columbus landing
'; + + $t = adodb_mktime(0,0,0,2,29,1500); + if (!(adodb_date('Y-m-d',$t) == '1500-02-29')) print 'Error in julian leap years
'; + + $t = adodb_mktime(0,0,0,2,29,1700); + if (!(adodb_date('Y-m-d',$t) == '1700-03-01')) print 'Error in gregorian leap years
'; + + print adodb_mktime(0,0,0,10,4,1582).' '; + print adodb_mktime(0,0,0,10,15,1582); + $diff = (adodb_mktime(0,0,0,10,15,1582) - adodb_mktime(0,0,0,10,4,1582)); + if ($diff != 3600*24) print " Error in gregorian correction = ".($diff/3600/24)." days
"; + + print " 15 Oct 1582, Fri=".(adodb_dow(1582,10,15) == 5 ? 'Fri' : 'Error')."
"; + print " 4 Oct 1582, Thu=".(adodb_dow(1582,10,4) == 4 ? 'Thu' : 'Error')."
"; + + print "

Testing overflow

"; + + $t = adodb_mktime(0,0,0,3,33,1965); + if (!(adodb_date('Y-m-d',$t) == '1965-04-02')) print 'Error in day overflow 1
'; + $t = adodb_mktime(0,0,0,4,33,1971); + if (!(adodb_date('Y-m-d',$t) == '1971-05-03')) print 'Error in day overflow 2
'; + $t = adodb_mktime(0,0,0,1,60,1965); + if (!(adodb_date('Y-m-d',$t) == '1965-03-01')) print 'Error in day overflow 3 '.adodb_date('Y-m-d',$t).'
'; + $t = adodb_mktime(0,0,0,12,32,1965); + if (!(adodb_date('Y-m-d',$t) == '1966-01-01')) print 'Error in day overflow 4 '.adodb_date('Y-m-d',$t).'
'; + $t = adodb_mktime(0,0,0,12,63,1965); + if (!(adodb_date('Y-m-d',$t) == '1966-02-01')) print 'Error in day overflow 5 '.adodb_date('Y-m-d',$t).'
'; + $t = adodb_mktime(0,0,0,13,3,1965); + if (!(adodb_date('Y-m-d',$t) == '1966-01-03')) print 'Error in mth overflow 1
'; + + print "Testing 2-digit => 4-digit year conversion

"; + if (adodb_year_digit_check(00) != 2000) print "Err 2-digit 2000
"; + if (adodb_year_digit_check(10) != 2010) print "Err 2-digit 2010
"; + if (adodb_year_digit_check(20) != 2020) print "Err 2-digit 2020
"; + if (adodb_year_digit_check(30) != 2030) print "Err 2-digit 2030
"; + if (adodb_year_digit_check(40) != 1940) print "Err 2-digit 1940
"; + if (adodb_year_digit_check(50) != 1950) print "Err 2-digit 1950
"; + if (adodb_year_digit_check(90) != 1990) print "Err 2-digit 1990
"; + + // Test string formating + print "

Testing date formating

"; + $fmt = '\d\a\t\e T Y-m-d H:i:s a A d D F g G h H i j l L m M n O \R\F\C822 r s t U w y Y z Z 2003'; + $s1 = date($fmt,0); + $s2 = adodb_date($fmt,0); + if ($s1 != $s2) { + print " date() 0 failed
$s1
$s2
"; + } + flush(); + for ($i=100; --$i > 0; ) { + + $ts = 3600.0*((rand()%60000)+(rand()%60000))+(rand()%60000); + $s1 = date($fmt,$ts); + $s2 = adodb_date($fmt,$ts); + //print "$s1
$s2

"; + $pos = strcmp($s1,$s2); + + if (($s1) != ($s2)) { + for ($j=0,$k=strlen($s1); $j < $k; $j++) { + if ($s1[$j] != $s2[$j]) { + print substr($s1,$j).' '; + break; + } + } + print "Error date(): $ts

 
+  \"$s1\" (date len=".strlen($s1).")
+  \"$s2\" (adodb_date len=".strlen($s2).")

"; + $fail = true; + } + + $a1 = getdate($ts); + $a2 = adodb_getdate($ts); + $rez = array_diff($a1,$a2); + if (sizeof($rez)>0) { + print "Error getdate() $ts
"; + print_r($a1); + print "
"; + print_r($a2); + print "

"; + $fail = true; + } + } + + // Test generation of dates outside 1901-2038 + print "

Testing random dates between 100 and 4000

"; + adodb_date_test_date(100,1); + for ($i=100; --$i >= 0;) { + $y1 = 100+rand(0,1970-100); + $m = rand(1,12); + adodb_date_test_date($y1,$m); + + $y1 = 3000-rand(0,3000-1970); + adodb_date_test_date($y1,$m); + } + print '

'; + $start = 1960+rand(0,10); + $yrs = 12; + $i = 365.25*86400*($start-1970); + $offset = 36000+rand(10000,60000); + $max = 365*$yrs*86400; + $lastyear = 0; + + // we generate a timestamp, convert it to a date, and convert it back to a timestamp + // and check if the roundtrip broke the original timestamp value. + print "Testing $start to ".($start+$yrs).", or $max seconds, offset=$offset: "; + + for ($max += $i; $i < $max; $i += $offset) { + $ret = adodb_date('m,d,Y,H,i,s',$i); + $arr = explode(',',$ret); + if ($lastyear != $arr[2]) { + $lastyear = $arr[2]; + print " $lastyear "; + flush(); + } + $newi = adodb_mktime($arr[3],$arr[4],$arr[5],$arr[0],$arr[1],$arr[2]); + if ($i != $newi) { + print "Error at $i, adodb_mktime returned $newi ($ret)"; + $fail = true; + break; + } + } + + if (!$fail) print "

Passed !

"; + else print "

Failed :-(

"; +} + +/** + Returns day of week, 0 = Sunday,... 6=Saturday. + Algorithm from PEAR::Date_Calc +*/ +function adodb_dow($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($year / 100) + 77); + + return (($day - 7 * floor($day / 7))) + $greg_correction; +} + + +/** + Checks for leap year, returns true if it is. No 2-digit year check. Also + handles julian calendar correctly. +*/ +function _adodb_is_leap_year($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 && $year % 100 == 0 ) { + return false; + } + + return true; +} + +/** + checks for leap year, returns true if it is. Has 2-digit year check +*/ +function adodb_is_leap_year($year) +{ + return _adodb_is_leap_year(adodb_year_digit_check($year)); +} + +/** + Fix 2-digit years. Works for any century. + Assumes that if 2-digit is more than 30 years in future, then previous century. +*/ +function adodb_year_digit_check($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; +} + +/** + get local time zone offset from GMT +*/ +function adodb_get_gmt_different() +{ +static $DIFF; + if (isset($DIFF)) return $DIFF; + + $DIFF = mktime(0,0,0,1,2,1970) - gmmktime(0,0,0,1,2,1970); + return $DIFF; +} + +/** + Returns an array with date info. +*/ +function adodb_getdate($d=false,$fast=false) +{ + if ($d === false) return getdate(); + if (!defined('ADODB_TEST_DATES')) { + if ((abs($d) <= 0x7FFFFFFF)) { // check if number in 32-bit signed range + if (!defined('ADODB_NO_NEGATIVE_TS') || $d >= 0) // if windows, must be +ve integer + return @getdate($d); + } + } + return _adodb_getdate($d); +} + +/** + Low-level function that returns the getdate() array. We have a special + $fast flag, which if set to true, will return fewer array values, + and is much faster as it does not calculate dow, etc. +*/ +function _adodb_getdate($origd=false,$fast=false,$is_gmt=false) +{ + $d = $origd - ($is_gmt ? 0 : adodb_get_gmt_different()); + + $_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 = array("",31,28,31,30,31,30,31,31,30,31,30,31); + $_month_table_leaf = array("",31,29,31,30,31,30,31,31,30,31,30,31); + + if ($d < 0) { + $origd = $d; + // The valid range of a 32bit signed timestamp is typically from + // Fri, 13 Dec 1901 20:45:54 GMT to Tue, 19 Jan 2038 03:14:07 GMT + for ($a = 1970 ; --$a >= 0;) { + $lastd = $d; + + if ($leaf = _adodb_is_leap_year($a)) { + $d += $_day_power * 366; + } else + $d += $_day_power * 365; + if ($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 = _adodb_is_leap_year($a)) { + $d -= $_day_power * 366; + } else + $d -= $_day_power * 365; + if ($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 + ); + } + + + $dow = adodb_dow($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 => $origd + ); +} + +function adodb_gmdate($fmt,$d=false) +{ + return adodb_date($fmt,$d,true); +} + + +/** + Return formatted date based on timestamp $d +*/ +function adodb_date($fmt,$d=false,$is_gmt=false) +{ + if ($d === false) return date($fmt); + if (!defined('ADODB_TEST_DATES')) { + if ((abs($d) <= 0x7FFFFFFF)) { // check if number in 32-bit signed range + if (!defined('ADODB_NO_NEGATIVE_TS') || $d >= 0) // if windows, must be +ve integer + return @date($fmt,$d); + } + } + $_day_power = 86400; + + $arr = _adodb_getdate($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 = ''; + + /* + 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',100000);break; + // YEAR + case 'L': $dates .= $arr['leap'] ? '1' : '0'; break; + case 'r': // Thu, 21 Dec 2000 16:01:07 +0200 + + $dates .= gmdate('D',$_day_power*(3+adodb_dow($year,$month,$day))).', ' + . ($day<10?' '.$day:$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 = adodb_get_gmt_different(); + $dates .= sprintf(' %s%04d',($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 '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': $dates .= adodb_dow($year,$month,$day); break; + case 'l': $dates .= gmdate('l',$_day_power*(3+adodb_dow($year,$month,$day))); break; + case 'D': $dates .= gmdate('D',$_day_power*(3+adodb_dow($year,$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) $dates .= 'nd'; + else if ($d10 == 3) $dates .= 'rd'; + else $dates .= 'th'; + break; + + // HOUR + case 'Z': + $dates .= ($is_gmt) ? 0 : -adodb_get_gmt_different(); break; + case 'O': + $gmt = ($is_gmt) ? 0 : adodb_get_gmt_different(); + $dates .= sprintf('%s%04d',($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; +} + +/** + Returns a timestamp given a GMT/UTC time. + Note that $is_dst is not implemented and is ignored. +*/ +function adodb_gmmktime($hr,$min,$sec,$mon,$day,$year,$is_dst=false) +{ + return adodb_mktime($hr,$min,$sec,$mon,$day,$year,$is_dst,true); +} + +/** + Return a timestamp given a local time. Originally by jackbbs. + Note that $is_dst is not implemented and is ignored. +*/ +function adodb_mktime($hr,$min,$sec,$mon,$day,$year,$is_dst=false,$is_gmt=false) +{ if (!defined('ADODB_TEST_DATES')) { + // for windows, we don't check 1970 because with timezone differences, + // 1 Jan 1970 could generate negative timestamp, which is illegal + if (!defined('ADODB_NO_NEGATIVE_TS') || ($year >= 1971)) + if (1901 < $year && $year < 2038) + return @mktime($hr,$min,$sec,$mon,$day,$year); + } + + $gmt_different = ($is_gmt) ? 0 : adodb_get_gmt_different(); + + $hr = intval($hr); + $min = intval($min); + $sec = intval($sec); + $mon = intval($mon); + $day = intval($day); + $year = intval($year); + + + $year = adodb_year_digit_check($year); + + if ($mon > 12) { + $y = floor($mon / 12); + $year += $y; + $mon -= $y*12; + } + + $_day_power = 86400; + $_hour_power = 3600; + $_min_power = 60; + + $_month_table_normal = array("",31,28,31,30,31,30,31,31,30,31,30,31); + $_month_table_leaf = array("",31,29,31,30,31,30,31,31,30,31,30,31); + + $_total_date = 0; + if ($year >= 1970) { + for ($a = 1970 ; $a <= $year; $a++) { + $leaf = _adodb_is_leap_year($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--) { + $leaf = _adodb_is_leap_year($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; +} + +?>