Fixed bug #60302: DateTime::createFromFormat should new static(), not new self()

Also fixes similar issues for DateTimeImmutable::createFromFormat,
DateTime::createFromImmmutable, DateTime::createFromInterface,
DateTimeImmutable::createFromMutable, and
DateTimeImmutable::createFromInterface.

NEWS

@@ -10,6 +10,10 @@ PHP                                                                        NEWS
   . Fixed bug #79897 (Promoted constructor params with attribs cause crash).
     (Deus Kane)
 
+- Date:
+  . Fixed bug #60302 (DateTime::createFromFormat should new static(), not new
+    self()). (Derick)
+
 - JIT:
   . Fixed bug #79864 (JIT segfault in Symfony OptionsResolver). (Dmitry)
   . Fixed bug #79888 (Incorrect execution with JIT enabled). (Dmitry)

ext/date/php_date.c

@@ -2292,7 +2292,7 @@ PHP_FUNCTION(date_create)
 }
 /* }}} */
 
-/* {{{ Returns new DateTime object */
+/* {{{ Returns new DateTimeImmutable object */
 PHP_FUNCTION(date_create_immutable)
 {
 	zval           *timezone_object = NULL;
@@ -2327,7 +2327,7 @@ PHP_FUNCTION(date_create_from_format)
 		Z_PARAM_OBJECT_OF_CLASS_OR_NULL(timezone_object, date_ce_timezone)
 	ZEND_PARSE_PARAMETERS_END();
 
-	php_date_instantiate(date_ce_date, return_value);
+	php_date_instantiate(execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_date, return_value);
 	if (!php_date_initialize(Z_PHPDATE_P(return_value), time_str, time_str_len, format_str, timezone_object, 0)) {
 		zval_ptr_dtor(return_value);
 		RETURN_FALSE;
@@ -2349,7 +2349,7 @@ PHP_FUNCTION(date_create_immutable_from_format)
 		Z_PARAM_OBJECT_OF_CLASS_OR_NULL(timezone_object, date_ce_timezone)
 	ZEND_PARSE_PARAMETERS_END();
 
-	php_date_instantiate(date_ce_immutable, return_value);
+	php_date_instantiate(execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_immutable, return_value);
 	if (!php_date_initialize(Z_PHPDATE_P(return_value), time_str, time_str_len, format_str, timezone_object, 0)) {
 		zval_ptr_dtor(return_value);
 		RETURN_FALSE;
@@ -2408,7 +2408,7 @@ PHP_METHOD(DateTime, createFromImmutable)
 		Z_PARAM_OBJECT_OF_CLASS(datetimeimmutable_object, date_ce_immutable)
 	ZEND_PARSE_PARAMETERS_END();
 
-	php_date_instantiate(date_ce_date, return_value);
+	php_date_instantiate(execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_date, return_value);
 	old_obj = Z_PHPDATE_P(datetimeimmutable_object);
 	new_obj = Z_PHPDATE_P(return_value);
 
@@ -2427,7 +2427,7 @@ PHP_METHOD(DateTime, createFromInterface)
 		Z_PARAM_OBJECT_OF_CLASS(datetimeinterface_object, date_ce_interface)
 	ZEND_PARSE_PARAMETERS_END();
 
-	php_date_instantiate(date_ce_date, return_value);
+	php_date_instantiate(execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_date, return_value);
 	old_obj = Z_PHPDATE_P(datetimeinterface_object);
 	new_obj = Z_PHPDATE_P(return_value);
 
@@ -2446,7 +2446,7 @@ PHP_METHOD(DateTimeImmutable, createFromMutable)
 		Z_PARAM_OBJECT_OF_CLASS(datetime_object, date_ce_date)
 	ZEND_PARSE_PARAMETERS_END();
 
-	php_date_instantiate(date_ce_immutable, return_value);
+	php_date_instantiate(execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_immutable, return_value);
 	old_obj = Z_PHPDATE_P(datetime_object);
 	new_obj = Z_PHPDATE_P(return_value);
 
@@ -2465,7 +2465,7 @@ PHP_METHOD(DateTimeImmutable, createFromInterface)
 		Z_PARAM_OBJECT_OF_CLASS(datetimeinterface_object, date_ce_interface)
 	ZEND_PARSE_PARAMETERS_END();
 
-	php_date_instantiate(date_ce_immutable, return_value);
+	php_date_instantiate(execute_data->This.value.ce ? execute_data->This.value.ce : date_ce_immutable, return_value);
 	old_obj = Z_PHPDATE_P(datetimeinterface_object);
 	new_obj = Z_PHPDATE_P(return_value);
 

ext/date/tests/DateTimeImmutable_createFromInterface-002.phpt

@@ -0,0 +1,81 @@
+--TEST--
+Tests for DateTimeImmutable::createFromInterface inheritance
+--INI--
+date.timezone=Europe/London
+--FILE--
+<?php
+class MyDateTimeImmutable extends DateTimeImmutable {}
+
+$current = "2014-03-02 16:24:08";
+
+$i = MyDateTimeImmutable::createFromInterface( date_create( $current ) );
+var_dump( $i );
+
+$i = MyDateTimeImmutable::createFromInterface( date_create_immutable( $current ) );
+var_dump( $i );
+
+$current = "2019-12-16 15:06:46 CET";
+
+$i = MyDateTimeImmutable::createFromInterface( date_create( $current ) );
+var_dump( $i );
+
+$i = MyDateTimeImmutable::createFromInterface( date_create_immutable( $current ) );
+var_dump( $i );
+
+$current = "2019-12-16 15:08:20 +0100";
+
+$i = MyDateTimeImmutable::createFromInterface( date_create( $current ) );
+var_dump( $i );
+
+$i = MyDateTimeImmutable::createFromInterface( date_create_immutable( $current ) );
+var_dump( $i );
+?>
+--EXPECTF--
+object(MyDateTimeImmutable)#%d (3) {
+  ["date"]=>
+  string(26) "2014-03-02 16:24:08.000000"
+  ["timezone_type"]=>
+  int(3)
+  ["timezone"]=>
+  string(13) "Europe/London"
+}
+object(MyDateTimeImmutable)#%d (3) {
+  ["date"]=>
+  string(26) "2014-03-02 16:24:08.000000"
+  ["timezone_type"]=>
+  int(3)
+  ["timezone"]=>
+  string(13) "Europe/London"
+}
+object(MyDateTimeImmutable)#%d (3) {
+  ["date"]=>
+  string(26) "2019-12-16 15:06:46.000000"
+  ["timezone_type"]=>
+  int(2)
+  ["timezone"]=>
+  string(3) "CET"
+}
+object(MyDateTimeImmutable)#%d (3) {
+  ["date"]=>
+  string(26) "2019-12-16 15:06:46.000000"
+  ["timezone_type"]=>
+  int(2)
+  ["timezone"]=>
+  string(3) "CET"
+}
+object(MyDateTimeImmutable)#%d (3) {
+  ["date"]=>
+  string(26) "2019-12-16 15:08:20.000000"
+  ["timezone_type"]=>
+  int(1)
+  ["timezone"]=>
+  string(6) "+01:00"
+}
+object(MyDateTimeImmutable)#%d (3) {
+  ["date"]=>
+  string(26) "2019-12-16 15:08:20.000000"
+  ["timezone_type"]=>
+  int(1)
+  ["timezone"]=>
+  string(6) "+01:00"
+}

ext/date/tests/DateTimeImmutable_createFromMutable-002.phpt

@@ -0,0 +1,29 @@
+--TEST--
+Tests for inherited DateTimeImmutable::createFromMutable
+--INI--
+date.timezone=Europe/London
+--FILE--
+<?php
+class MyDateTimeImmutable extends DateTimeImmutable {}
+
+$current = "2014-03-02 16:24:08";
+
+$i = MyDateTimeImmutable::createFromMutable( date_create( $current ) );
+var_dump( $i );
+
+try {
+    MyDateTimeImmutable::createFromMutable( date_create_immutable( $current ) );
+} catch (TypeError $e) {
+    echo $e->getMessage(), "\n";
+}
+?>
+--EXPECTF--
+object(MyDateTimeImmutable)#%d (3) {
+  ["date"]=>
+  string(26) "2014-03-02 16:24:08.000000"
+  ["timezone_type"]=>
+  int(3)
+  ["timezone"]=>
+  string(13) "Europe/London"
+}
+DateTimeImmutable::createFromMutable(): Argument #1 ($object) must be of type DateTime, DateTimeImmutable given

ext/date/tests/DateTime_createFromImmutable-001.phpt

@@ -1,5 +1,5 @@
 --TEST--
-Tests for DateTime::createFromImmutable.
+Tests for DateTime::createFromImmutable
 --INI--
 date.timezone=Europe/London
 --FILE--

ext/date/tests/DateTime_createFromImmutable-002.phpt

@@ -0,0 +1,35 @@
+--TEST--
+Tests for inherited DateTime::createFromImmutable
+--INI--
+date.timezone=Europe/London
+--FILE--
+<?php
+class MyDateTime extends DateTime {}
+
+$current = "2014-03-02 16:24:08";
+$i = date_create_immutable( $current );
+
+$m = MyDateTime::createFromImmutable( $i );
+var_dump( $m );
+
+$m->modify('+ 1 hour');
+
+var_dump( $i->format('Y-m-d H:i:s') === $current );
+
+try {
+    MyDateTime::createFromImmutable( date_create( $current ) );
+} catch (TypeError $e) {
+    echo $e->getMessage(), "\n";
+}
+?>
+--EXPECTF--
+object(MyDateTime)#%d (3) {
+  ["date"]=>
+  string(26) "2014-03-02 16:24:08.000000"
+  ["timezone_type"]=>
+  int(3)
+  ["timezone"]=>
+  string(13) "Europe/London"
+}
+bool(true)
+DateTime::createFromImmutable(): Argument #1 ($object) must be of type DateTimeImmutable, DateTime given

ext/date/tests/DateTime_createFromInterface-002.phpt

@@ -0,0 +1,81 @@
+--TEST--
+Tests for DateTime::createFromInterface with inheritance
+--INI--
+date.timezone=Europe/London
+--FILE--
+<?php
+class MyDateTime extends DateTime {}
+
+$current = "2014-03-02 16:24:08";
+
+$i = MyDateTime::createFromInterface( date_create( $current ) );
+var_dump( $i );
+
+$i = MyDateTime::createFromInterface( date_create_immutable( $current ) );
+var_dump( $i );
+
+$current = "2019-12-16 15:06:46 CET";
+
+$i = MyDateTime::createFromInterface( date_create( $current ) );
+var_dump( $i );
+
+$i = MyDateTime::createFromInterface( date_create_immutable( $current ) );
+var_dump( $i );
+
+$current = "2019-12-16 15:08:20 +0100";
+
+$i = MyDateTime::createFromInterface( date_create( $current ) );
+var_dump( $i );
+
+$i = MyDateTime::createFromInterface( date_create_immutable( $current ) );
+var_dump( $i );
+?>
+--EXPECTF--
+object(MyDateTime)#%d (3) {
+  ["date"]=>
+  string(26) "2014-03-02 16:24:08.000000"
+  ["timezone_type"]=>
+  int(3)
+  ["timezone"]=>
+  string(13) "Europe/London"
+}
+object(MyDateTime)#%d (3) {
+  ["date"]=>
+  string(26) "2014-03-02 16:24:08.000000"
+  ["timezone_type"]=>
+  int(3)
+  ["timezone"]=>
+  string(13) "Europe/London"
+}
+object(MyDateTime)#%d (3) {
+  ["date"]=>
+  string(26) "2019-12-16 15:06:46.000000"
+  ["timezone_type"]=>
+  int(2)
+  ["timezone"]=>
+  string(3) "CET"
+}
+object(MyDateTime)#%d (3) {
+  ["date"]=>
+  string(26) "2019-12-16 15:06:46.000000"
+  ["timezone_type"]=>
+  int(2)
+  ["timezone"]=>
+  string(3) "CET"
+}
+object(MyDateTime)#%d (3) {
+  ["date"]=>
+  string(26) "2019-12-16 15:08:20.000000"
+  ["timezone_type"]=>
+  int(1)
+  ["timezone"]=>
+  string(6) "+01:00"
+}
+object(MyDateTime)#%d (3) {
+  ["date"]=>
+  string(26) "2019-12-16 15:08:20.000000"
+  ["timezone_type"]=>
+  int(1)
+  ["timezone"]=>
+  string(6) "+01:00"
+}

ext/date/tests/bug60302-001.phpt

@@ -0,0 +1,13 @@
+--TEST--
+Test for bug #60302: DateTime::createFromFormat should new static(), not new self()
+--FILE--
+<?php
+
+class MyDateTime extends DateTime { }
+
+$d = MyDateTime::createFromFormat('Y-m-d', '2011-01-01');
+
+echo get_class($d);
+?>
+--EXPECT--
+MyDateTime

ext/date/tests/bug60302-002.phpt

@@ -0,0 +1,13 @@
+--TEST--
+Test for bug #60302: DateTimeImmutable::createFromFormat should new static(), not new self()
+--FILE--
+<?php
+
+class MyDateTime extends DateTimeImmutable { }
+
+$d = MyDateTime::createFromFormat('Y-m-d', '2011-01-01');
+
+echo get_class($d);
+?>
+--EXPECT--
+MyDateTime