From 97ec0f3db53a4b789d08cac473c54cff9b7d0692 Mon Sep 17 00:00:00 2001
From: Derick Rethans <derick@php.net>
Date: Tue, 20 Dec 2005 15:58:01 +0000
Subject: [PATCH] - Fixed bug #35699 (date() can't handle leap years before
 1970).

---
 NEWS                         |  1 +
 ext/date/lib/unixtime2tm.c   |  3 +++
 ext/date/tests/bug35699.phpt | 14 ++++++++++++++
 3 files changed, 18 insertions(+)
 create mode 100644 ext/date/tests/bug35699.phpt

diff --git a/NEWS b/NEWS
index 287f8c93aa..68cf139dcc 100644
--- a/NEWS
+++ b/NEWS
@@ -39,6 +39,7 @@ PHP                                                                        NEWS
   options like '-1'). (Tony)
 - Fixed bug #35705 (strtotime() fails to parse soap date format without TZ).
   (Ilia)
+- Fixed bug #35699 (date() can't handle leap years before 1970). (Derick)
 - Fixed bug #35694 (Improved error message for invalid fetch mode). (Ilia)
 - Fixed bug #35692 (iconv_mime_decode() segmentation fault; with libiconv 
   only). (Tony)
diff --git a/ext/date/lib/unixtime2tm.c b/ext/date/lib/unixtime2tm.c
index 0187abbcfb..412f86f2bb 100644
--- a/ext/date/lib/unixtime2tm.c
+++ b/ext/date/lib/unixtime2tm.c
@@ -93,6 +93,9 @@ void timelib_unixtime2gmt(timelib_time* tm, timelib_sll ts)
 	DEBUG(printf("tmp_days=%lld, year=%lld\n", tmp_days, cur_year););
 
 	months = timelib_is_leap(cur_year) ? month_tab_leap : month_tab;
+	if (timelib_is_leap(cur_year) && cur_year < 1970) {
+		tmp_days--;
+	}
 	i = 11;
 	while (i > 0) {
 		DEBUG(printf("month=%lld (%d)\n", i, months[i]););
diff --git a/ext/date/tests/bug35699.phpt b/ext/date/tests/bug35699.phpt
new file mode 100644
index 0000000000..5e4951e9fc
--- /dev/null
+++ b/ext/date/tests/bug35699.phpt
@@ -0,0 +1,14 @@
+--TEST--
+Bug #35699 (date() can't handle leap years before 1970)
+--FILE--
+<?php
+date_default_timezone_set("UTC");
+
+echo date(DATE_ISO8601, strtotime('1964-06-06')), "\n";
+echo date(DATE_ISO8601, strtotime('1963-06-06')), "\n";
+echo date(DATE_ISO8601, strtotime('1964-01-06')), "\n";
+?>
+--EXPECT--
+1964-06-06T00:00:00+0000
+1963-06-06T00:00:00+0000
+1964-01-06T00:00:00+0000
-- 
2.50.1