/**
Return a timestamp given a local time. Originally by jackbbs.
Note that $is_dst is not implemented and is ignored.
Not a very fast algorithm - O(n) operation. Could be optimized to O(1).
*/
function adodb_mktime($hr, $min, $sec, $mon = false, $day = false, $year = false, $is_dst = false, $is_gmt = false)
{
if (!defined('ADODB_TEST_DATES')) {
if ($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
$usephpfns = 1971 < $year && $year < 2038 || !defined('ADODB_NO_NEGATIVE_TS') && (1901 < $year && $year < 2038);
if ($usephpfns && $year + $mon / 12 + $day / 365.25 + $hr / (24 * 365.25) >= 2038) {
$usephpfns = false;
}
if ($usephpfns) {
return $is_gmt ? @gmmktime($hr, $min, $sec, $mon, $day, $year) : @mktime($hr, $min, $sec, $mon, $day, $year);
}
}
$gmt_different = $is_gmt ? 0 : adodb_get_gmt_diff($year, $mon, $day);
/*
# 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);
$year = adodb_year_digit_check($year);
if ($mon > 12) {
$y = floor(($mon - 1) / 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 = 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) {
$ret += 10 * 86400;
} else {
if ($ret < -12219321600) {
$ret = -12219321600;
}
}
// if in limbo, reset to 15 Oct 1582.
}
//print " dmy=$day/$mon/$year $hr:$min:$sec => " .$ret;
return $ret;
}
/**
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_diff();
$hr = intval($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 < -12220185600.0) {
$ret += 10 * 86400;
} else {
if ($ret < -12219321600.0) {
$ret = -12219321600.0;
}
}
// if in limbo, reset to 15 Oct 1582.
}
//print " dmy=$day/$mon/$year $hr:$min:$sec => " .$ret;
return $ret;
}