Only warn when an incorrect timezone is set through 'date.timezone'

ext/date/php_date.c

@@ -224,7 +224,7 @@ static PHP_INI_MH(OnUpdate_date_timezone);
 
 /* {{{ INI Settings */
 PHP_INI_BEGIN()
-	STD_PHP_INI_ENTRY("date.timezone", "", PHP_INI_ALL, OnUpdate_date_timezone, default_timezone, zend_date_globals, date_globals)
+	STD_PHP_INI_ENTRY("date.timezone", "UTC", PHP_INI_ALL, OnUpdate_date_timezone, default_timezone, zend_date_globals, date_globals)
 	PHP_INI_ENTRY("date.default_latitude",           DATE_DEFAULT_LATITUDE,        PHP_INI_ALL, NULL)
 	PHP_INI_ENTRY("date.default_longitude",          DATE_DEFAULT_LONGITUDE,       PHP_INI_ALL, NULL)
 	PHP_INI_ENTRY("date.sunset_zenith",              DATE_SUNSET_ZENITH,           PHP_INI_ALL, NULL)
@@ -478,20 +478,18 @@ timelib_tzinfo *php_date_parse_tzfile_wrapper(const char *formal_tzname, const t
 /* {{{ static PHP_INI_MH(OnUpdate_date_timezone) */
 static PHP_INI_MH(OnUpdate_date_timezone)
 {
+	DATEG(timezone_valid) = 0;
+
+	if (new_value && ZSTR_VAL(new_value) && !timelib_timezone_id_is_valid(ZSTR_VAL(new_value), DATE_TIMEZONEDB)) {
+		php_error_docref(NULL, E_WARNING, "Invalid date.timezone value '%s', using 'UTC' instead", ZSTR_VAL(new_value));
+		return FAILURE;
+	}
+
 	if (OnUpdateString(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage) == FAILURE) {
 		return FAILURE;
 	}
 
-	DATEG(timezone_valid) = 0;
-	if (stage == PHP_INI_STAGE_RUNTIME) {
-		if (!timelib_timezone_id_is_valid(DATEG(default_timezone), DATE_TIMEZONEDB)) {
-			if (DATEG(default_timezone) && *DATEG(default_timezone)) {
-				php_error_docref(NULL, E_WARNING, "Invalid date.timezone value '%s'", DATEG(default_timezone));
-			}
-		} else {
-			DATEG(timezone_valid) = 1;
-		}
-	}
+	DATEG(timezone_valid) = 1;
 
 	return SUCCESS;
 }

ext/date/tests/bug73239.phpt

@@ -10,5 +10,4 @@ try {
 }
 ?>
 --EXPECTF--
-Warning: ini_set(): Invalid date.timezone value 'dummy' in %sbug73239.php on line %d
-DateTime::__construct(): UTC was used as timezone, because the date.timezone value 'dummy' is invalid
+Warning: ini_set(): Invalid date.timezone value 'dummy', using 'UTC' instead in %sbug73239.php on line %d

ext/date/tests/date_default_timezone_get-1.phpt

@@ -13,5 +13,6 @@ date.timezone=
     echo date('e'), "\n";
 ?>
 --EXPECT--
+Warning: PHP Startup: Invalid date.timezone value '', using 'UTC' instead in Unknown on line 0
 UTC
 UTC

ext/date/tests/date_default_timezone_get-2.phpt

@@ -12,4 +12,5 @@ date.timezone=
     echo date_default_timezone_get(), "\n";
 ?>
 --EXPECT--
+Warning: PHP Startup: Invalid date.timezone value '', using 'UTC' instead in Unknown on line 0
 UTC

ext/date/tests/date_default_timezone_get-4.phpt

@@ -7,5 +7,5 @@ date.timezone=Incorrect/Zone
     echo date_default_timezone_get(), "\n";
 ?>
 --EXPECTF--
-Warning: date_default_timezone_get(): UTC was used as timezone, because the date.timezone value 'Incorrect/Zone' is invalid in %sdate_default_timezone_get-4.php on line %d
+Warning: PHP Startup: Invalid date.timezone value 'Incorrect/Zone', using 'UTC' instead in %s on line %d
 UTC

ext/date/tests/date_default_timezone_set-1.phpt

@@ -21,7 +21,8 @@ date.timezone=
     echo date(DATE_ISO8601, $date3), "\n";
     echo date(DATE_ISO8601, $date4), "\n";
 ?>
---EXPECT--
+--EXPECTF--
+Warning: PHP Startup: Invalid date.timezone value '', using 'UTC' instead in %s on line %d
 America/Indiana/Knox
 2005-01-12T03:00:00-0500
 2005-07-12T03:00:00-0500

ext/date/tests/ini_set_incorrect.phpt

@@ -7,4 +7,4 @@ ini_set("date.timezone", "Incorrect/Zone");
 
 ?>
 --EXPECTF--
-Warning: ini_set(): Invalid date.timezone value 'Incorrect/Zone' in %sini_set_incorrect.php on line %d
+Warning: ini_set(): Invalid date.timezone value 'Incorrect/Zone', using 'UTC' instead in %sini_set_incorrect.php on line %d

ext/intl/tests/dateformat_invalid_timezone.phpt

@@ -14,5 +14,6 @@ try {
   echo $e->getMessage();
 }
 ?>
---EXPECT--
-IntlDateFormatter::__construct(): UTC was used as timezone, because the date.timezone value 'Mars/Utopia_Planitia' is invalid
+--EXPECTF--
+Warning: PHP Startup: Invalid date.timezone value 'Mars/Utopia_Planitia', using 'UTC' instead in %s on line %d
+Wat?

sapi/cli/tests/006.phpt

@@ -11,7 +11,7 @@ if (PCRE_JIT_SUPPORT == false) {
 }
 ?>
 --INI--
-date.timezone=
+date.timezone=UTC
 --FILE--
 <?php