From 10da251565e80d9030a6c9609e91fda8c7197ef5 Mon Sep 17 00:00:00 2001
From: Hannes Magnusson <bjori@php.net>
Date: Sun, 5 Jun 2011 13:30:01 +0000
Subject: [PATCH] Fixed bug#51819 (Case discrepancy in timezone names cause
 Uncaught exception and fatal error)

---
 NEWS                         |   2 +
 ext/date/lib/parse_date.c    | 215 +++++++++++++++++++----------------
 ext/date/lib/parse_date.re   |  19 ++++
 ext/date/tests/bug51819.phpt |   5 +-
 4 files changed, 140 insertions(+), 101 deletions(-)

diff --git a/NEWS b/NEWS
index f5ee7ea956..cc522cf53f 100644
--- a/NEWS
+++ b/NEWS
@@ -69,6 +69,8 @@ PHP                                                                        NEWS
   . Fixed bug #54316 (DateTime::createFromFormat does not handle trailing '|'
     correctly). (Adam)
   . Fixed bug #54283 (new DatePeriod(NULL) causes crash). (Felipe)
+  . Fixed bug #51819 (Case discrepancy in timezone names cause Uncaught
+    exception and fatal error). (Hannes)
 
 - DBA extension:
   . Fixed bug #54242 (dba_insert returns true if key already exists). (Felipe)
diff --git a/ext/date/lib/parse_date.c b/ext/date/lib/parse_date.c
index 71be6674c4..fbadae313e 100644
--- a/ext/date/lib/parse_date.c
+++ b/ext/date/lib/parse_date.c
@@ -1,4 +1,4 @@
-/* Generated by re2c 0.13.5 on Mon Mar 28 05:05:13 2011 */
+/* Generated by re2c 0.13.5 on Sun Jun  5 15:26:42 2011 */
 #line 1 "ext/date/lib/parse_date.re"
 /*
    +----------------------------------------------------------------------+
@@ -721,6 +721,25 @@ const static timelib_tz_lookup_table* zone_search(const char *word, long gmtoffs
 		return first_found_elem;
 	}
 
+	for (tp = timelib_timezone_lookup; tp->name; tp++) {
+		if (tp->full_tz_name && strcasecmp(word, tp->full_tz_name) == 0) {
+			if (!first_found) {
+				first_found = 1;
+				first_found_elem = tp;
+				if (gmtoffset == -1) {
+					return tp;
+				}
+			}
+			if (tp->gmtoffset == gmtoffset) {
+				return tp;
+			}
+		}
+	}
+	if (first_found) {
+		return first_found_elem;
+	}
+
+
 	/* Still didn't find anything, let's find the zone solely based on
 	 * offset/isdst then */
 	for (fmp = timelib_timezone_fallbackmap; fmp->name; fmp++) {
@@ -844,11 +863,11 @@ static int scan(Scanner *s)
 std:
 	s->tok = cursor;
 	s->len = 0;
-#line 970 "ext/date/lib/parse_date.re"
+#line 989 "ext/date/lib/parse_date.re"
 
 
 
-#line 852 "ext/date/lib/parse_date.c"
+#line 871 "ext/date/lib/parse_date.c"
 {
 	YYCTYPE yych;
 	unsigned int yyaccept = 0;
@@ -968,7 +987,7 @@ std:
 	}
 yy2:
 	YYDEBUG(2, *YYCURSOR);
-#line 1055 "ext/date/lib/parse_date.re"
+#line 1074 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("firstdayof | lastdayof");
 		TIMELIB_INIT;
@@ -984,7 +1003,7 @@ yy2:
 		TIMELIB_DEINIT;
 		return TIMELIB_LF_DAY_OF_MONTH;
 	}
-#line 988 "ext/date/lib/parse_date.c"
+#line 1007 "ext/date/lib/parse_date.c"
 yy3:
 	YYDEBUG(3, *YYCURSOR);
 	++YYCURSOR;
@@ -1007,7 +1026,7 @@ yy3:
 	}
 yy4:
 	YYDEBUG(4, *YYCURSOR);
-#line 1637 "ext/date/lib/parse_date.re"
+#line 1656 "ext/date/lib/parse_date.re"
 	{
 		int tz_not_found;
 		DEBUG_OUTPUT("tzcorrection | tz");
@@ -1020,7 +1039,7 @@ yy4:
 		TIMELIB_DEINIT;
 		return TIMELIB_TIMEZONE;
 	}
-#line 1024 "ext/date/lib/parse_date.c"
+#line 1043 "ext/date/lib/parse_date.c"
 yy5:
 	YYDEBUG(5, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -1331,12 +1350,12 @@ yy12:
 	if (yych <= '9') goto yy1385;
 yy13:
 	YYDEBUG(13, *YYCURSOR);
-#line 1732 "ext/date/lib/parse_date.re"
+#line 1751 "ext/date/lib/parse_date.re"
 	{
 		add_error(s, "Unexpected character");
 		goto std;
 	}
-#line 1340 "ext/date/lib/parse_date.c"
+#line 1359 "ext/date/lib/parse_date.c"
 yy14:
 	YYDEBUG(14, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -2393,11 +2412,11 @@ yy49:
 	if (yych <= '9') goto yy55;
 yy50:
 	YYDEBUG(50, *YYCURSOR);
-#line 1721 "ext/date/lib/parse_date.re"
+#line 1740 "ext/date/lib/parse_date.re"
 	{
 		goto std;
 	}
-#line 2401 "ext/date/lib/parse_date.c"
+#line 2420 "ext/date/lib/parse_date.c"
 yy51:
 	YYDEBUG(51, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -2406,12 +2425,12 @@ yy52:
 	YYDEBUG(52, *YYCURSOR);
 	++YYCURSOR;
 	YYDEBUG(53, *YYCURSOR);
-#line 1726 "ext/date/lib/parse_date.re"
+#line 1745 "ext/date/lib/parse_date.re"
 	{
 		s->pos = cursor; s->line++;
 		goto std;
 	}
-#line 2415 "ext/date/lib/parse_date.c"
+#line 2434 "ext/date/lib/parse_date.c"
 yy54:
 	YYDEBUG(54, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -2798,7 +2817,7 @@ yy72:
 	if (yych == 's') goto yy74;
 yy73:
 	YYDEBUG(73, *YYCURSOR);
-#line 1705 "ext/date/lib/parse_date.re"
+#line 1724 "ext/date/lib/parse_date.re"
 	{
 		timelib_ull i;
 		DEBUG_OUTPUT("relative");
@@ -2813,7 +2832,7 @@ yy73:
 		TIMELIB_DEINIT;
 		return TIMELIB_RELATIVE;
 	}
-#line 2817 "ext/date/lib/parse_date.c"
+#line 2836 "ext/date/lib/parse_date.c"
 yy74:
 	YYDEBUG(74, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -3575,7 +3594,7 @@ yy166:
 	}
 yy167:
 	YYDEBUG(167, *YYCURSOR);
-#line 1568 "ext/date/lib/parse_date.re"
+#line 1587 "ext/date/lib/parse_date.re"
 	{
 		const timelib_relunit* relunit;
 		DEBUG_OUTPUT("daytext");
@@ -3592,7 +3611,7 @@ yy167:
 		TIMELIB_DEINIT;
 		return TIMELIB_WEEKDAY;
 	}
-#line 3596 "ext/date/lib/parse_date.c"
+#line 3615 "ext/date/lib/parse_date.c"
 yy168:
 	YYDEBUG(168, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -4112,7 +4131,7 @@ yy193:
 	}
 yy194:
 	YYDEBUG(194, *YYCURSOR);
-#line 1627 "ext/date/lib/parse_date.re"
+#line 1646 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("monthtext");
 		TIMELIB_INIT;
@@ -4121,7 +4140,7 @@ yy194:
 		TIMELIB_DEINIT;
 		return TIMELIB_DATE_TEXT;
 	}
-#line 4125 "ext/date/lib/parse_date.c"
+#line 4144 "ext/date/lib/parse_date.c"
 yy195:
 	YYDEBUG(195, *YYCURSOR);
 	++YYCURSOR;
@@ -4172,7 +4191,7 @@ yy198:
 	}
 yy199:
 	YYDEBUG(199, *YYCURSOR);
-#line 1377 "ext/date/lib/parse_date.re"
+#line 1396 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("datetextual | datenoyear");
 		TIMELIB_INIT;
@@ -4184,7 +4203,7 @@ yy199:
 		TIMELIB_DEINIT;
 		return TIMELIB_DATE_TEXT;
 	}
-#line 4188 "ext/date/lib/parse_date.c"
+#line 4207 "ext/date/lib/parse_date.c"
 yy200:
 	YYDEBUG(200, *YYCURSOR);
 	yyaccept = 6;
@@ -4453,7 +4472,7 @@ yy222:
 	}
 yy223:
 	YYDEBUG(223, *YYCURSOR);
-#line 1675 "ext/date/lib/parse_date.re"
+#line 1694 "ext/date/lib/parse_date.re"
 	{
 		int tz_not_found;
 		DEBUG_OUTPUT("dateshortwithtimeshort | dateshortwithtimelong | dateshortwithtimelongtz");
@@ -4482,7 +4501,7 @@ yy223:
 		TIMELIB_DEINIT;
 		return TIMELIB_SHORTDATE_WITH_TIME;
 	}
-#line 4486 "ext/date/lib/parse_date.c"
+#line 4505 "ext/date/lib/parse_date.c"
 yy224:
 	YYDEBUG(224, *YYCURSOR);
 	yyaccept = 7;
@@ -5180,7 +5199,7 @@ yy278:
 	YYDEBUG(278, *YYCURSOR);
 	++YYCURSOR;
 	YYDEBUG(279, *YYCURSOR);
-#line 1651 "ext/date/lib/parse_date.re"
+#line 1670 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("dateshortwithtimeshort12 | dateshortwithtimelong12");
 		TIMELIB_INIT;
@@ -5203,7 +5222,7 @@ yy278:
 		TIMELIB_DEINIT;
 		return TIMELIB_SHORTDATE_WITH_TIME;
 	}
-#line 5207 "ext/date/lib/parse_date.c"
+#line 5226 "ext/date/lib/parse_date.c"
 yy280:
 	YYDEBUG(280, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -5381,7 +5400,7 @@ yy294:
 	++YYCURSOR;
 yy295:
 	YYDEBUG(295, *YYCURSOR);
-#line 1351 "ext/date/lib/parse_date.re"
+#line 1370 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("datenoday");
 		TIMELIB_INIT;
@@ -5393,7 +5412,7 @@ yy295:
 		TIMELIB_DEINIT;
 		return TIMELIB_DATE_NO_DAY;
 	}
-#line 5397 "ext/date/lib/parse_date.c"
+#line 5416 "ext/date/lib/parse_date.c"
 yy296:
 	YYDEBUG(296, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -6613,7 +6632,7 @@ yy362:
 	if (yych <= '9') goto yy365;
 yy364:
 	YYDEBUG(364, *YYCURSOR);
-#line 1491 "ext/date/lib/parse_date.re"
+#line 1510 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("pgtextshort");
 		TIMELIB_INIT;
@@ -6625,7 +6644,7 @@ yy364:
 		TIMELIB_DEINIT;
 		return TIMELIB_PG_TEXT;
 	}
-#line 6629 "ext/date/lib/parse_date.c"
+#line 6648 "ext/date/lib/parse_date.c"
 yy365:
 	YYDEBUG(365, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -7263,7 +7282,7 @@ yy392:
 	}
 yy393:
 	YYDEBUG(393, *YYCURSOR);
-#line 1547 "ext/date/lib/parse_date.re"
+#line 1566 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("ago");
 		TIMELIB_INIT;
@@ -7283,7 +7302,7 @@ yy393:
 		TIMELIB_DEINIT;
 		return TIMELIB_AGO;
 	}
-#line 7287 "ext/date/lib/parse_date.c"
+#line 7306 "ext/date/lib/parse_date.c"
 yy394:
 	YYDEBUG(394, *YYCURSOR);
 	yyaccept = 5;
@@ -9033,7 +9052,7 @@ yy454:
 	++YYCURSOR;
 yy455:
 	YYDEBUG(455, *YYCURSOR);
-#line 1261 "ext/date/lib/parse_date.re"
+#line 1280 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("iso8601date4 | iso8601date2 | iso8601dateslash | dateslash");
 		TIMELIB_INIT;
@@ -9044,7 +9063,7 @@ yy455:
 		TIMELIB_DEINIT;
 		return TIMELIB_ISO_DATE;
 	}
-#line 9048 "ext/date/lib/parse_date.c"
+#line 9067 "ext/date/lib/parse_date.c"
 yy456:
 	YYDEBUG(456, *YYCURSOR);
 	yyaccept = 0;
@@ -9604,7 +9623,7 @@ yy475:
 	}
 yy476:
 	YYDEBUG(476, *YYCURSOR);
-#line 1390 "ext/date/lib/parse_date.re"
+#line 1409 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("datenoyearrev");
 		TIMELIB_INIT;
@@ -9615,7 +9634,7 @@ yy476:
 		TIMELIB_DEINIT;
 		return TIMELIB_DATE_TEXT;
 	}
-#line 9619 "ext/date/lib/parse_date.c"
+#line 9638 "ext/date/lib/parse_date.c"
 yy477:
 	YYDEBUG(477, *YYCURSOR);
 	yyaccept = 10;
@@ -9756,7 +9775,7 @@ yy488:
 	YYDEBUG(488, *YYCURSOR);
 	++YYCURSOR;
 	YYDEBUG(489, *YYCURSOR);
-#line 1117 "ext/date/lib/parse_date.re"
+#line 1136 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("timetiny12 | timeshort12 | timelong12");
 		TIMELIB_INIT;
@@ -9772,7 +9791,7 @@ yy488:
 		TIMELIB_DEINIT;
 		return TIMELIB_TIME12;
 	}
-#line 9776 "ext/date/lib/parse_date.c"
+#line 9795 "ext/date/lib/parse_date.c"
 yy490:
 	YYDEBUG(490, *YYCURSOR);
 	yyaccept = 11;
@@ -9785,7 +9804,7 @@ yy490:
 	}
 yy491:
 	YYDEBUG(491, *YYCURSOR);
-#line 1154 "ext/date/lib/parse_date.re"
+#line 1173 "ext/date/lib/parse_date.re"
 	{
 		int tz_not_found;
 		DEBUG_OUTPUT("timeshort24 | timelong24 | iso8601long");
@@ -9810,7 +9829,7 @@ yy491:
 		TIMELIB_DEINIT;
 		return TIMELIB_TIME24_WITH_ZONE;
 	}
-#line 9814 "ext/date/lib/parse_date.c"
+#line 9833 "ext/date/lib/parse_date.c"
 yy492:
 	YYDEBUG(492, *YYCURSOR);
 	yyaccept = 11;
@@ -10120,7 +10139,7 @@ yy523:
 	YYDEBUG(523, *YYCURSOR);
 	++YYCURSOR;
 	YYDEBUG(524, *YYCURSOR);
-#line 1134 "ext/date/lib/parse_date.re"
+#line 1153 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("mssqltime");
 		TIMELIB_INIT;
@@ -10139,7 +10158,7 @@ yy523:
 		TIMELIB_DEINIT;
 		return TIMELIB_TIME24_WITH_ZONE;
 	}
-#line 10143 "ext/date/lib/parse_date.c"
+#line 10162 "ext/date/lib/parse_date.c"
 yy525:
 	YYDEBUG(525, *YYCURSOR);
 	yyaccept = 11;
@@ -10245,7 +10264,7 @@ yy534:
 	if (yych <= '9') goto yy541;
 yy535:
 	YYDEBUG(535, *YYCURSOR);
-#line 1312 "ext/date/lib/parse_date.re"
+#line 1331 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("datefull");
 		TIMELIB_INIT;
@@ -10258,7 +10277,7 @@ yy535:
 		TIMELIB_DEINIT;
 		return TIMELIB_DATE_FULL;
 	}
-#line 10262 "ext/date/lib/parse_date.c"
+#line 10281 "ext/date/lib/parse_date.c"
 yy536:
 	YYDEBUG(536, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -10995,7 +11014,7 @@ yy605:
 	YYDEBUG(606, *YYCURSOR);
 	++YYCURSOR;
 	YYDEBUG(607, *YYCURSOR);
-#line 1326 "ext/date/lib/parse_date.re"
+#line 1345 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("pointed date YYYY");
 		TIMELIB_INIT;
@@ -11006,7 +11025,7 @@ yy605:
 		TIMELIB_DEINIT;
 		return TIMELIB_DATE_FULL_POINTED;
 	}
-#line 11010 "ext/date/lib/parse_date.c"
+#line 11029 "ext/date/lib/parse_date.c"
 yy608:
 	YYDEBUG(608, *YYCURSOR);
 	yyaccept = 11;
@@ -11042,7 +11061,7 @@ yy611:
 	if (yych <= '9') goto yy605;
 yy612:
 	YYDEBUG(612, *YYCURSOR);
-#line 1338 "ext/date/lib/parse_date.re"
+#line 1357 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("pointed date YY");
 		TIMELIB_INIT;
@@ -11054,7 +11073,7 @@ yy612:
 		TIMELIB_DEINIT;
 		return TIMELIB_DATE_FULL_POINTED;
 	}
-#line 11058 "ext/date/lib/parse_date.c"
+#line 11077 "ext/date/lib/parse_date.c"
 yy613:
 	YYDEBUG(613, *YYCURSOR);
 	yyaccept = 11;
@@ -11695,7 +11714,7 @@ yy656:
 	}
 yy657:
 	YYDEBUG(657, *YYCURSOR);
-#line 1299 "ext/date/lib/parse_date.re"
+#line 1318 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("gnudateshort");
 		TIMELIB_INIT;
@@ -11707,7 +11726,7 @@ yy657:
 		TIMELIB_DEINIT;
 		return TIMELIB_ISO_DATE;
 	}
-#line 11711 "ext/date/lib/parse_date.c"
+#line 11730 "ext/date/lib/parse_date.c"
 yy658:
 	YYDEBUG(658, *YYCURSOR);
 	yyaccept = 13;
@@ -11813,7 +11832,7 @@ yy666:
 	}
 yy667:
 	YYDEBUG(667, *YYCURSOR);
-#line 1246 "ext/date/lib/parse_date.re"
+#line 1265 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("americanshort | american");
 		TIMELIB_INIT;
@@ -11827,7 +11846,7 @@ yy667:
 		TIMELIB_DEINIT;
 		return TIMELIB_AMERICAN;
 	}
-#line 11831 "ext/date/lib/parse_date.c"
+#line 11850 "ext/date/lib/parse_date.c"
 yy668:
 	YYDEBUG(668, *YYCURSOR);
 	yyaccept = 14;
@@ -12060,7 +12079,7 @@ yy700:
 	if (yych <= ':') goto yy704;
 yy701:
 	YYDEBUG(701, *YYCURSOR);
-#line 1517 "ext/date/lib/parse_date.re"
+#line 1536 "ext/date/lib/parse_date.re"
 	{
 		int tz_not_found;
 		DEBUG_OUTPUT("clf");
@@ -12080,7 +12099,7 @@ yy701:
 		TIMELIB_DEINIT;
 		return TIMELIB_CLF;
 	}
-#line 12084 "ext/date/lib/parse_date.c"
+#line 12103 "ext/date/lib/parse_date.c"
 yy702:
 	YYDEBUG(702, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -12632,7 +12651,7 @@ yy763:
 	}
 yy764:
 	YYDEBUG(764, *YYCURSOR);
-#line 1273 "ext/date/lib/parse_date.re"
+#line 1292 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("iso8601date2");
 		TIMELIB_INIT;
@@ -12644,7 +12663,7 @@ yy764:
 		TIMELIB_DEINIT;
 		return TIMELIB_ISO_DATE;
 	}
-#line 12648 "ext/date/lib/parse_date.c"
+#line 12667 "ext/date/lib/parse_date.c"
 yy765:
 	YYDEBUG(765, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -12683,7 +12702,7 @@ yy771:
 	YYDEBUG(771, *YYCURSOR);
 	++YYCURSOR;
 	YYDEBUG(772, *YYCURSOR);
-#line 1504 "ext/date/lib/parse_date.re"
+#line 1523 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("pgtextreverse");
 		TIMELIB_INIT;
@@ -12695,7 +12714,7 @@ yy771:
 		TIMELIB_DEINIT;
 		return TIMELIB_PG_TEXT;
 	}
-#line 12699 "ext/date/lib/parse_date.c"
+#line 12718 "ext/date/lib/parse_date.c"
 yy773:
 	YYDEBUG(773, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -12833,7 +12852,7 @@ yy783:
 	}
 yy784:
 	YYDEBUG(784, *YYCURSOR);
-#line 1538 "ext/date/lib/parse_date.re"
+#line 1557 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("year4");
 		TIMELIB_INIT;
@@ -12841,7 +12860,7 @@ yy784:
 		TIMELIB_DEINIT;
 		return TIMELIB_CLF;
 	}
-#line 12845 "ext/date/lib/parse_date.c"
+#line 12864 "ext/date/lib/parse_date.c"
 yy785:
 	YYDEBUG(785, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -12992,7 +13011,7 @@ yy793:
 	}
 yy794:
 	YYDEBUG(794, *YYCURSOR);
-#line 1364 "ext/date/lib/parse_date.re"
+#line 1383 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("datenodayrev");
 		TIMELIB_INIT;
@@ -13004,7 +13023,7 @@ yy794:
 		TIMELIB_DEINIT;
 		return TIMELIB_DATE_NO_DAY;
 	}
-#line 13008 "ext/date/lib/parse_date.c"
+#line 13027 "ext/date/lib/parse_date.c"
 yy795:
 	YYDEBUG(795, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -13219,7 +13238,7 @@ yy814:
 	if (yych <= '7') goto yy817;
 yy815:
 	YYDEBUG(815, *YYCURSOR);
-#line 1472 "ext/date/lib/parse_date.re"
+#line 1491 "ext/date/lib/parse_date.re"
 	{
 		timelib_sll w, d;
 		DEBUG_OUTPUT("isoweek");
@@ -13237,7 +13256,7 @@ yy815:
 		TIMELIB_DEINIT;
 		return TIMELIB_ISO_WEEK;
 	}
-#line 13241 "ext/date/lib/parse_date.c"
+#line 13260 "ext/date/lib/parse_date.c"
 yy816:
 	YYDEBUG(816, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -13247,7 +13266,7 @@ yy817:
 	YYDEBUG(817, *YYCURSOR);
 	++YYCURSOR;
 	YYDEBUG(818, *YYCURSOR);
-#line 1453 "ext/date/lib/parse_date.re"
+#line 1472 "ext/date/lib/parse_date.re"
 	{
 		timelib_sll w, d;
 		DEBUG_OUTPUT("isoweekday");
@@ -13265,7 +13284,7 @@ yy817:
 		TIMELIB_DEINIT;
 		return TIMELIB_ISO_WEEK;
 	}
-#line 13269 "ext/date/lib/parse_date.c"
+#line 13288 "ext/date/lib/parse_date.c"
 yy819:
 	YYDEBUG(819, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -13329,7 +13348,7 @@ yy821:
 	}
 yy822:
 	YYDEBUG(822, *YYCURSOR);
-#line 1440 "ext/date/lib/parse_date.re"
+#line 1459 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("pgydotd");
 		TIMELIB_INIT;
@@ -13341,7 +13360,7 @@ yy822:
 		TIMELIB_DEINIT;
 		return TIMELIB_PG_YEARDAY;
 	}
-#line 13345 "ext/date/lib/parse_date.c"
+#line 13364 "ext/date/lib/parse_date.c"
 yy823:
 	YYDEBUG(823, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -13444,7 +13463,7 @@ yy842:
 	++YYCURSOR;
 yy843:
 	YYDEBUG(843, *YYCURSOR);
-#line 1414 "ext/date/lib/parse_date.re"
+#line 1433 "ext/date/lib/parse_date.re"
 	{
 		int tz_not_found;
 		DEBUG_OUTPUT("xmlrpc | xmlrpcnocolon | soap | wddx | exif");
@@ -13469,7 +13488,7 @@ yy843:
 		TIMELIB_DEINIT;
 		return TIMELIB_XMLRPC_SOAP;
 	}
-#line 13473 "ext/date/lib/parse_date.c"
+#line 13492 "ext/date/lib/parse_date.c"
 yy844:
 	YYDEBUG(844, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -13731,7 +13750,7 @@ yy848:
 	}
 yy849:
 	YYDEBUG(849, *YYCURSOR);
-#line 1402 "ext/date/lib/parse_date.re"
+#line 1421 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("datenocolon");
 		TIMELIB_INIT;
@@ -13742,7 +13761,7 @@ yy849:
 		TIMELIB_DEINIT;
 		return TIMELIB_DATE_NOCOLON;
 	}
-#line 13746 "ext/date/lib/parse_date.c"
+#line 13765 "ext/date/lib/parse_date.c"
 yy850:
 	YYDEBUG(850, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -14662,7 +14681,7 @@ yy973:
 	if (yych <= '9') goto yy996;
 yy974:
 	YYDEBUG(974, *YYCURSOR);
-#line 1286 "ext/date/lib/parse_date.re"
+#line 1305 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("gnudateshorter");
 		TIMELIB_INIT;
@@ -14674,7 +14693,7 @@ yy974:
 		TIMELIB_DEINIT;
 		return TIMELIB_ISO_DATE;
 	}
-#line 14678 "ext/date/lib/parse_date.c"
+#line 14697 "ext/date/lib/parse_date.c"
 yy975:
 	YYDEBUG(975, *YYCURSOR);
 	yyaccept = 22;
@@ -15683,7 +15702,7 @@ yy1066:
 	}
 yy1068:
 	YYDEBUG(1068, *YYCURSOR);
-#line 1180 "ext/date/lib/parse_date.re"
+#line 1199 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("gnunocolon");
 		TIMELIB_INIT;
@@ -15705,7 +15724,7 @@ yy1068:
 		TIMELIB_DEINIT;
 		return TIMELIB_GNU_NOCOLON;
 	}
-#line 15709 "ext/date/lib/parse_date.c"
+#line 15728 "ext/date/lib/parse_date.c"
 yy1069:
 	YYDEBUG(1069, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -15797,7 +15816,7 @@ yy1075:
 	}
 yy1076:
 	YYDEBUG(1076, *YYCURSOR);
-#line 1226 "ext/date/lib/parse_date.re"
+#line 1245 "ext/date/lib/parse_date.re"
 	{
 		int tz_not_found;
 		DEBUG_OUTPUT("iso8601nocolon");
@@ -15816,7 +15835,7 @@ yy1076:
 		TIMELIB_DEINIT;
 		return TIMELIB_ISO_NOCOLON;
 	}
-#line 15820 "ext/date/lib/parse_date.c"
+#line 15839 "ext/date/lib/parse_date.c"
 yy1077:
 	YYDEBUG(1077, *YYCURSOR);
 	yyaccept = 25;
@@ -16714,7 +16733,7 @@ yy1117:
 	}
 yy1118:
 	YYDEBUG(1118, *YYCURSOR);
-#line 1610 "ext/date/lib/parse_date.re"
+#line 1629 "ext/date/lib/parse_date.re"
 	{
 		timelib_sll i;
 		int         behavior = 0;
@@ -16730,7 +16749,7 @@ yy1118:
 		TIMELIB_DEINIT;
 		return TIMELIB_RELATIVE;
 	}
-#line 16734 "ext/date/lib/parse_date.c"
+#line 16753 "ext/date/lib/parse_date.c"
 yy1119:
 	YYDEBUG(1119, *YYCURSOR);
 	++YYCURSOR;
@@ -16781,7 +16800,7 @@ yy1126:
 	YYDEBUG(1126, *YYCURSOR);
 	++YYCURSOR;
 	YYDEBUG(1127, *YYCURSOR);
-#line 1095 "ext/date/lib/parse_date.re"
+#line 1114 "ext/date/lib/parse_date.re"
 	{
 		timelib_sll i;
 		int         behavior = 0;
@@ -16802,7 +16821,7 @@ yy1126:
 		TIMELIB_DEINIT;
 		return TIMELIB_WEEK_DAY_OF_MONTH;
 	}
-#line 16806 "ext/date/lib/parse_date.c"
+#line 16825 "ext/date/lib/parse_date.c"
 yy1128:
 	YYDEBUG(1128, *YYCURSOR);
 	yyaccept = 26;
@@ -16910,7 +16929,7 @@ yy1141:
 	}
 yy1142:
 	YYDEBUG(1142, *YYCURSOR);
-#line 1586 "ext/date/lib/parse_date.re"
+#line 1605 "ext/date/lib/parse_date.re"
 	{
 		timelib_sll i;
 		int         behavior = 0;
@@ -16933,7 +16952,7 @@ yy1142:
 		TIMELIB_DEINIT;
 		return TIMELIB_RELATIVE;
 	}
-#line 16937 "ext/date/lib/parse_date.c"
+#line 16956 "ext/date/lib/parse_date.c"
 yy1143:
 	YYDEBUG(1143, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -19610,7 +19629,7 @@ yy1294:
 	goto yy1298;
 yy1295:
 	YYDEBUG(1295, *YYCURSOR);
-#line 1072 "ext/date/lib/parse_date.re"
+#line 1091 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("backof | frontof");
 		TIMELIB_INIT;
@@ -19632,7 +19651,7 @@ yy1295:
 		TIMELIB_DEINIT;
 		return TIMELIB_LF_DAY_OF_MONTH;
 	}
-#line 19636 "ext/date/lib/parse_date.c"
+#line 19655 "ext/date/lib/parse_date.c"
 yy1296:
 	YYDEBUG(1296, *YYCURSOR);
 	yyaccept = 28;
@@ -21323,7 +21342,7 @@ yy1385:
 	if (yych <= '9') goto yy1385;
 yy1387:
 	YYDEBUG(1387, *YYCURSOR);
-#line 1030 "ext/date/lib/parse_date.re"
+#line 1049 "ext/date/lib/parse_date.re"
 	{
 		timelib_ull i;
 
@@ -21347,7 +21366,7 @@ yy1387:
 		TIMELIB_DEINIT;
 		return TIMELIB_RELATIVE;
 	}
-#line 21351 "ext/date/lib/parse_date.c"
+#line 21370 "ext/date/lib/parse_date.c"
 yy1388:
 	YYDEBUG(1388, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -21783,7 +21802,7 @@ yy1416:
 	++YYCURSOR;
 yy1417:
 	YYDEBUG(1417, *YYCURSOR);
-#line 1018 "ext/date/lib/parse_date.re"
+#line 1037 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("tomorrow");
 		TIMELIB_INIT;
@@ -21794,7 +21813,7 @@ yy1417:
 		TIMELIB_DEINIT;
 		return TIMELIB_RELATIVE;
 	}
-#line 21798 "ext/date/lib/parse_date.c"
+#line 21817 "ext/date/lib/parse_date.c"
 yy1418:
 	YYDEBUG(1418, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -21829,7 +21848,7 @@ yy1419:
 	}
 yy1420:
 	YYDEBUG(1420, *YYCURSOR);
-#line 1008 "ext/date/lib/parse_date.re"
+#line 1027 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("midnight | today");
 		TIMELIB_INIT;
@@ -21838,7 +21857,7 @@ yy1420:
 		TIMELIB_DEINIT;
 		return TIMELIB_RELATIVE;
 	}
-#line 21842 "ext/date/lib/parse_date.c"
+#line 21861 "ext/date/lib/parse_date.c"
 yy1421:
 	YYDEBUG(1421, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -23850,7 +23869,7 @@ yy1499:
 	}
 yy1500:
 	YYDEBUG(1500, *YYCURSOR);
-#line 987 "ext/date/lib/parse_date.re"
+#line 1006 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("now");
 		TIMELIB_INIT;
@@ -23858,7 +23877,7 @@ yy1500:
 		TIMELIB_DEINIT;
 		return TIMELIB_RELATIVE;
 	}
-#line 23862 "ext/date/lib/parse_date.c"
+#line 23881 "ext/date/lib/parse_date.c"
 yy1501:
 	YYDEBUG(1501, *YYCURSOR);
 	yych = *++YYCURSOR;
@@ -23997,7 +24016,7 @@ yy1507:
 	}
 yy1508:
 	YYDEBUG(1508, *YYCURSOR);
-#line 996 "ext/date/lib/parse_date.re"
+#line 1015 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("noon");
 		TIMELIB_INIT;
@@ -24008,7 +24027,7 @@ yy1508:
 		TIMELIB_DEINIT;
 		return TIMELIB_RELATIVE;
 	}
-#line 24012 "ext/date/lib/parse_date.c"
+#line 24031 "ext/date/lib/parse_date.c"
 yy1509:
 	YYDEBUG(1509, *YYCURSOR);
 	yyaccept = 0;
@@ -24541,7 +24560,7 @@ yy1530:
 	++YYCURSOR;
 yy1531:
 	YYDEBUG(1531, *YYCURSOR);
-#line 975 "ext/date/lib/parse_date.re"
+#line 994 "ext/date/lib/parse_date.re"
 	{
 		DEBUG_OUTPUT("yesterday");
 		TIMELIB_INIT;
@@ -24552,7 +24571,7 @@ yy1531:
 		TIMELIB_DEINIT;
 		return TIMELIB_RELATIVE;
 	}
-#line 24556 "ext/date/lib/parse_date.c"
+#line 24575 "ext/date/lib/parse_date.c"
 yy1532:
 	YYDEBUG(1532, *YYCURSOR);
 	yyaccept = 0;
@@ -24725,7 +24744,7 @@ yy1537:
 		goto yy1531;
 	}
 }
-#line 1736 "ext/date/lib/parse_date.re"
+#line 1755 "ext/date/lib/parse_date.re"
 
 }
 
diff --git a/ext/date/lib/parse_date.re b/ext/date/lib/parse_date.re
index 765678a472..2bd50566fc 100644
--- a/ext/date/lib/parse_date.re
+++ b/ext/date/lib/parse_date.re
@@ -719,6 +719,25 @@ const static timelib_tz_lookup_table* zone_search(const char *word, long gmtoffs
 		return first_found_elem;
 	}
 
+	for (tp = timelib_timezone_lookup; tp->name; tp++) {
+		if (tp->full_tz_name && strcasecmp(word, tp->full_tz_name) == 0) {
+			if (!first_found) {
+				first_found = 1;
+				first_found_elem = tp;
+				if (gmtoffset == -1) {
+					return tp;
+				}
+			}
+			if (tp->gmtoffset == gmtoffset) {
+				return tp;
+			}
+		}
+	}
+	if (first_found) {
+		return first_found_elem;
+	}
+
+
 	/* Still didn't find anything, let's find the zone solely based on
 	 * offset/isdst then */
 	for (fmp = timelib_timezone_fallbackmap; fmp->name; fmp++) {
diff --git a/ext/date/tests/bug51819.phpt b/ext/date/tests/bug51819.phpt
index bef8b76271..37cab2055e 100644
--- a/ext/date/tests/bug51819.phpt
+++ b/ext/date/tests/bug51819.phpt
@@ -1,7 +1,5 @@
 --TEST--
 Bug #51819 (Case discrepancy in timezone names cause Uncaught exception and fatal error)
---XFAIL--
-Bug #51819 isn't fixed yet
 --FILE--
 <?php
 date_default_timezone_set('UTC');
@@ -26,10 +24,11 @@ foreach ($aTz as $sTz) {
         $oDateTime = new DateTime($sDate);
     } catch (Exception $oException) {
         var_dump($oException->getMessage());
+        print_r(DateTime::getLastErrors());
     }
 }
 
 var_dump('this should be the only output');
 ?>
 --EXPECTF--
-string(30) "this should be the only output"
\ No newline at end of file
+string(30) "this should be the only output"
-- 
2.40.0