diff --git a/ext/bcmath/libbcmath/src/raise.c b/ext/bcmath/libbcmath/src/raise.c
index 5df8130c24219..959ba924e57fd 100644
--- a/ext/bcmath/libbcmath/src/raise.c
+++ b/ext/bcmath/libbcmath/src/raise.c
@@ -193,7 +193,12 @@ bc_raise_status bc_raise(bc_num base, long exponent, bc_num *result, size_t scal
 
 	if (bc_is_zero(base)) {
 		/* If the exponent is negative, it divides by 0 */
-		return is_neg ? BC_RAISE_STATUS_DIVIDE_BY_ZERO : BC_RAISE_STATUS_OK;
+		if (is_neg) {
+			return BC_RAISE_STATUS_DIVIDE_BY_ZERO;
+		}
+		bc_free_num (result);
+		*result = bc_copy_num(BCG(_zero_));
+		return BC_RAISE_STATUS_OK;
 	}
 
 	/* check overflow */
diff --git a/ext/bcmath/tests/gh20006.phpt b/ext/bcmath/tests/gh20006.phpt
new file mode 100644
index 0000000000000..ab0db915152d3
--- /dev/null
+++ b/ext/bcmath/tests/gh20006.phpt
@@ -0,0 +1,16 @@
+--TEST--
+GH-20006 (Power of 0 of BcMath number causes crash)
+--EXTENSIONS--
+bcmath
+--FILE--
+<?php
+$n = new BcMath\Number("0");
+var_dump(pow($n, 2));
+?>
+--EXPECTF--
+object(BcMath\Number)#%d (2) {
+  ["value"]=>
+  string(1) "0"
+  ["scale"]=>
+  int(0)
+}
diff --git a/ext/filter/callback_filter.c b/ext/filter/callback_filter.c
index 719b66767980f..dea39c6cc7c30 100644
--- a/ext/filter/callback_filter.c
+++ b/ext/filter/callback_filter.c
@@ -19,22 +19,21 @@
 zend_result php_filter_callback(PHP_INPUT_FILTER_PARAM_DECL)
 {
 	zval retval;
-	int status;
+	zend_fcall_info_cache fcc;
 
-	if (!option_array || !zend_is_callable(option_array, IS_CALLABLE_SUPPRESS_DEPRECATIONS, NULL)) {
+	if (!option_array || !zend_is_callable_ex(option_array, NULL, IS_CALLABLE_SUPPRESS_DEPRECATIONS, NULL, &fcc, NULL)) {
 		zend_type_error("%s(): Option must be a valid callback", get_active_function_name());
 		zval_ptr_dtor(value);
 		ZVAL_NULL(value);
 		return SUCCESS;
 	}
 
-	status = call_user_function(NULL, NULL, option_array, &retval, 1, value);
+	zend_call_known_fcc(&fcc, &retval, 1, value, NULL);
+	zval_ptr_dtor(value);
 
-	if (status == SUCCESS && !Z_ISUNDEF(retval)) {
-		zval_ptr_dtor(value);
+	if (!Z_ISUNDEF(retval)) {
 		ZVAL_COPY_VALUE(value, &retval);
 	} else {
-		zval_ptr_dtor(value);
 		ZVAL_NULL(value);
 	}
 	return SUCCESS;
diff --git a/ext/mysqli/tests/bug67563.phpt b/ext/mysqli/tests/bug67563.phpt
new file mode 100644
index 0000000000000..72a51ecdccd2c
--- /dev/null
+++ b/ext/mysqli/tests/bug67563.phpt
@@ -0,0 +1,40 @@
+--TEST--
+Fix bug #67563 (mysqli compiled with mysqlnd does not take ipv6 adress as parameter)
+--EXTENSIONS--
+mysqli
+--SKIPIF--
+<?php
+require_once 'connect.inc';
+
+if ($host !== '127.0.0.1')
+    die('skip local test');
+
+if (@stream_socket_client('udp://[::1]:8888') === false)
+    die('skip no IPv6 support 2');
+
+if (!$link = @my_mysqli_connect($host, $user, $passwd, $db, $port, $socket)) {
+    die(sprintf("SKIP Cannot connect to the server using host=%s, user=%s, passwd=***, dbname=%s, port=%s, socket=%s\n",
+        $host, $user, $db, $port, $socket));
+}
+?>
+--INI--
+max_execution_time=240
+--FILE--
+<?php
+require_once 'connect.inc';
+
+$hosts = ['::1', "[::1]:$port"];
+
+foreach ($hosts as $host) {
+    if (!$link = my_mysqli_connect($host, $user, $passwd, $db, $port, $socket)) {
+        printf("[001] Cannot connect to the server using host=%s, user=%s, passwd=%s dbname=%s, port=%s, socket=%s\n",
+            $host, $user, $passwd, $db, $port, $socket);
+    } else {
+        $link->close();
+    }
+}
+
+print "done!";
+?>
+--EXPECT--
+done!
diff --git a/ext/mysqlnd/mysqlnd_connection.c b/ext/mysqlnd/mysqlnd_connection.c
index 42acb258665bc..31f3da08f6e1a 100644
--- a/ext/mysqlnd/mysqlnd_connection.c
+++ b/ext/mysqlnd/mysqlnd_connection.c
@@ -508,6 +508,16 @@ MYSQLND_METHOD(mysqlnd_conn_data, connect_handshake)(MYSQLND_CONN_DATA * conn,
 }
 /* }}} */
 
+/* ipv6 addresses have at least two colons, which is how we can differentiate between domain names and addresses */
+static bool mysqlnd_fast_is_ipv6_address(const char *s)
+{
+	const char *first_colon = strchr(s, ':');
+	if (!first_colon) {
+		return false;
+	}
+	return strchr(first_colon + 1, ':') != NULL;
+}
+
 /* {{{ mysqlnd_conn_data::get_scheme */
 static MYSQLND_STRING
 MYSQLND_METHOD(mysqlnd_conn_data, get_scheme)(MYSQLND_CONN_DATA * conn, MYSQLND_CSTRING hostname, MYSQLND_CSTRING *socket_or_pipe, unsigned int port, bool * unix_socket, bool * named_pipe)
@@ -537,7 +547,13 @@ MYSQLND_METHOD(mysqlnd_conn_data, get_scheme)(MYSQLND_CONN_DATA * conn, MYSQLND_
 		if (!port) {
 			port = 3306;
 		}
-		transport.l = mnd_sprintf(&transport.s, 0, "tcp://%s:%u", hostname.s, port);
+
+		/* ipv6 addresses are in the format [address]:port */
+		if (hostname.s[0] != '[' && mysqlnd_fast_is_ipv6_address(hostname.s)) {
+			transport.l = mnd_sprintf(&transport.s, 0, "tcp://[%s]:%u", hostname.s, port);
+		} else {
+			transport.l = mnd_sprintf(&transport.s, 0, "tcp://%s:%u", hostname.s, port);
+		}
 	}
 	DBG_INF_FMT("transport=%s", transport.s? transport.s:"OOM");
 	DBG_RETURN(transport);
diff --git a/ext/standard/tests/file/bug46347.phpt b/ext/standard/tests/file/bug46347.phpt
index 903a6e35cc2b2..e337ade9eb8fb 100644
--- a/ext/standard/tests/file/bug46347.phpt
+++ b/ext/standard/tests/file/bug46347.phpt
@@ -8,14 +8,14 @@ $str = <<< EOF
 part1.*.part2 = 1
 EOF;
 
-$file = __DIR__ . '/parse.ini';
+$file = __DIR__ . '/bug46347.ini';
 file_put_contents($file, $str);
 
 var_dump(parse_ini_file($file));
 ?>
 --CLEAN--
 <?php
-unlink(__DIR__.'/parse.ini');
+unlink(__DIR__.'/bug46347.ini');
 ?>
 --EXPECT--
 array(1) {