diff --git a/ext/mysqli/tests/bug70384.phpt b/ext/mysqli/tests/bug70384.phpt
new file mode 100644
index 00000000000..aa8662badf7
--- /dev/null
+++ b/ext/mysqli/tests/bug70384.phpt
@@ -0,0 +1,62 @@
+--TEST--
+mysqli_float_handling - ensure 4 byte float is handled correctly
+--SKIPIF--
+<?php
+	require_once('skipif.inc');
+	require_once('skipifemb.inc');
+	require_once('skipifconnectfailure.inc');
+	if (@$link = my_mysqli_connect($host, $user, $passwd, $db, $port, $socket)) {
+		if ($link->server_version < 50709) {
+			die("skip MySQL 5.7.9+ needed. Found [".
+				intval(substr($link->server_version."", -5, 1)).
+				".".
+				intval(substr($link->server_version."", -4, 2)).
+				".".
+				intval(substr($link->server_version."", -2, 2)).
+				"]");
+		}
+	}
+?>
+--FILE--
+<?php
+	require('connect.inc');
+	if (!$link = my_mysqli_connect($host, $user, $passwd, $db, $port, $socket)) {
+		printf("[001] [%d] %s\n", mysqli_connect_errno(), mysqli_connect_error());
+		die();
+	}
+
+	if (!mysqli_query($link, "DROP TABLE IF EXISTS test")) {
+		printf("[002] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+		die();
+	}
+
+	if (!mysqli_query($link, "CREATE TABLE test(jsfield JSON) ENGINE = InnoDB")) {
+		printf("[003] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+		die();
+	}
+	$jsfield_data = '{"aaa": 123}';
+	// Insert via string to make sure the real floating number gets to the DB
+	if (!mysqli_query($link, "INSERT INTO test VALUES ('".$jsfield_data."')")) {
+		printf("[004] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+		die();
+	}
+
+	if (!($res = mysqli_query($link, "SELECT *  FROM test"))) {
+		printf("[005] [%d] %s\n", mysqli_errno($link), mysqli_error($link));
+		die();
+	}
+	$rows = $res->fetch_all();
+	if (json_encode($rows[0][0]) != json_encode($jsfield_data)) {
+		printf("[006] Data differs");
+		var_dump(json_encode($rows[0][0]) != json_encode($jsfield_data));
+		die();	
+	}
+	mysqli_close($link);
+	echo "OK";
+?>
+--CLEAN--
+<?php
+	require_once("clean_table.inc");
+?>
+--EXPECTF--
+OK
\ No newline at end of file
diff --git a/ext/mysqli/tests/mysqli_get_client_stats.phpt b/ext/mysqli/tests/mysqli_get_client_stats.phpt
index a22fc58f53f..ebed88fe3ff 100644
--- a/ext/mysqli/tests/mysqli_get_client_stats.phpt
+++ b/ext/mysqli/tests/mysqli_get_client_stats.phpt
@@ -958,7 +958,7 @@ if (!mysqli_query($link, "DROP SERVER IF EXISTS myself"))
 mysqli_close($link);
 ?>
 --EXPECTF--
-array(160) {
+array(161) {
   [%u|b%"bytes_sent"]=>
   %unicode|string%(1) "0"
   [%u|b%"bytes_received"]=>
@@ -1203,6 +1203,8 @@ array(160) {
   %unicode|string%(1) "0"
   [%u|b%"proto_binary_fetched_string"]=>
   %unicode|string%(1) "0"
+  [%u|b%"proto_binary_fetched_json"]=>
+  %unicode|string%(1) "0"
   [%u|b%"proto_binary_fetched_blob"]=>
   %unicode|string%(1) "0"
   [%u|b%"proto_binary_fetched_enum"]=>
diff --git a/ext/mysqlnd/mysqlnd.c b/ext/mysqlnd/mysqlnd.c
index 41df2b6cae2..f0089862273 100644
--- a/ext/mysqlnd/mysqlnd.c
+++ b/ext/mysqlnd/mysqlnd.c
@@ -2215,6 +2215,8 @@ MYSQLND_METHOD(mysqlnd_conn_data, next_result)(MYSQLND_CONN_DATA * const conn TS
 PHPAPI const char *mysqlnd_field_type_name(enum mysqlnd_field_types field_type)
 {
 	switch(field_type) {
+		case FIELD_TYPE_JSON:
+			return "json";
 		case FIELD_TYPE_STRING:
 		case FIELD_TYPE_VAR_STRING:
 			return "string";
diff --git a/ext/mysqlnd/mysqlnd_enum_n_def.h b/ext/mysqlnd/mysqlnd_enum_n_def.h
index 300d7a8ced5..c1ede7e6562 100644
--- a/ext/mysqlnd/mysqlnd_enum_n_def.h
+++ b/ext/mysqlnd/mysqlnd_enum_n_def.h
@@ -233,6 +233,7 @@ typedef enum mysqlnd_field_types
 	MYSQL_TYPE_NEWDATE	= 14,
 	MYSQL_TYPE_VARCHAR	= 15,
 	MYSQL_TYPE_BIT		= 16,
+	MYSQL_TYPE_JSON=245,
 	MYSQL_TYPE_NEWDECIMAL=246,
 	MYSQL_TYPE_ENUM=247,
 	MYSQL_TYPE_SET=248,
@@ -274,6 +275,7 @@ typedef enum mysqlnd_server_option
 #define FIELD_TYPE_NEWDATE		MYSQL_TYPE_NEWDATE
 #define FIELD_TYPE_ENUM			MYSQL_TYPE_ENUM
 #define FIELD_TYPE_SET			MYSQL_TYPE_SET
+#define FIELD_TYPE_JSON 		MYSQL_TYPE_JSON
 #define FIELD_TYPE_TINY_BLOB	MYSQL_TYPE_TINY_BLOB
 #define FIELD_TYPE_MEDIUM_BLOB	MYSQL_TYPE_MEDIUM_BLOB
 #define FIELD_TYPE_LONG_BLOB	MYSQL_TYPE_LONG_BLOB
@@ -478,6 +480,7 @@ typedef enum mysqlnd_collected_stats
 	STAT_TEXT_TYPE_FETCHED_DATETIME,
 	STAT_TEXT_TYPE_FETCHED_TIMESTAMP,
 	STAT_TEXT_TYPE_FETCHED_STRING,
+	STAT_TEXT_TYPE_FETCHED_JSON,
 	STAT_TEXT_TYPE_FETCHED_BLOB,
 	STAT_TEXT_TYPE_FETCHED_ENUM,
 	STAT_TEXT_TYPE_FETCHED_SET,
diff --git a/ext/mysqlnd/mysqlnd_ps_codec.c b/ext/mysqlnd/mysqlnd_ps_codec.c
index 9a70af0f36a..8a331a50c6a 100644
--- a/ext/mysqlnd/mysqlnd_ps_codec.c
+++ b/ext/mysqlnd/mysqlnd_ps_codec.c
@@ -437,6 +437,12 @@ void _mysqlnd_init_ps_fetch_subsystem()
 	mysqlnd_ps_fetch_functions[MYSQL_TYPE_TIMESTAMP].php_type= IS_STRING;
 	mysqlnd_ps_fetch_functions[MYSQL_TYPE_TIMESTAMP].can_ret_as_str_in_uni	= TRUE;
 
+	mysqlnd_ps_fetch_functions[MYSQL_TYPE_JSON].func	= ps_fetch_string;
+	mysqlnd_ps_fetch_functions[MYSQL_TYPE_JSON].pack_len= MYSQLND_PS_SKIP_RESULT_STR;
+	mysqlnd_ps_fetch_functions[MYSQL_TYPE_JSON].php_type = IS_STRING;
+	mysqlnd_ps_fetch_functions[MYSQL_TYPE_JSON].is_possibly_blob = TRUE;
+	mysqlnd_ps_fetch_functions[MYSQL_TYPE_JSON].can_ret_as_str_in_uni	= TRUE;
+
 	mysqlnd_ps_fetch_functions[MYSQL_TYPE_TINY_BLOB].func	= ps_fetch_string;
 	mysqlnd_ps_fetch_functions[MYSQL_TYPE_TINY_BLOB].pack_len= MYSQLND_PS_SKIP_RESULT_STR;
 	mysqlnd_ps_fetch_functions[MYSQL_TYPE_TINY_BLOB].php_type = IS_STRING;
diff --git a/ext/mysqlnd/mysqlnd_statistics.c b/ext/mysqlnd/mysqlnd_statistics.c
index d2fed161f94..eb73e9f4343 100644
--- a/ext/mysqlnd/mysqlnd_statistics.c
+++ b/ext/mysqlnd/mysqlnd_statistics.c
@@ -153,6 +153,7 @@ const MYSQLND_STRING mysqlnd_stats_values_names[STAT_LAST] =
 	{ MYSQLND_STR_W_LEN("proto_binary_fetched_datetime") },
 	{ MYSQLND_STR_W_LEN("proto_binary_fetched_timestamp") },
 	{ MYSQLND_STR_W_LEN("proto_binary_fetched_string") },
+	{ MYSQLND_STR_W_LEN("proto_binary_fetched_json") },
 	{ MYSQLND_STR_W_LEN("proto_binary_fetched_blob") },
 	{ MYSQLND_STR_W_LEN("proto_binary_fetched_enum") },
 	{ MYSQLND_STR_W_LEN("proto_binary_fetched_set") },
diff --git a/ext/mysqlnd/mysqlnd_wireprotocol.c b/ext/mysqlnd/mysqlnd_wireprotocol.c
index c7c0bf91907..5901a863318 100644
--- a/ext/mysqlnd/mysqlnd_wireprotocol.c
+++ b/ext/mysqlnd/mysqlnd_wireprotocol.c
@@ -1656,6 +1656,7 @@ php_mysqlnd_rowp_read_text_protocol_aux(MYSQLND_MEMORY_POOL_CHUNK * row_buffer,
 					case MYSQL_TYPE_NEWDECIMAL:	statistic = STAT_TEXT_TYPE_FETCHED_DECIMAL; break;
 					case MYSQL_TYPE_ENUM:		statistic = STAT_TEXT_TYPE_FETCHED_ENUM; break;
 					case MYSQL_TYPE_SET:		statistic = STAT_TEXT_TYPE_FETCHED_SET; break;
+					case MYSQL_TYPE_JSON:		statistic = STAT_TEXT_TYPE_FETCHED_JSON; break;
 					case MYSQL_TYPE_TINY_BLOB:	statistic = STAT_TEXT_TYPE_FETCHED_BLOB; break;
 					case MYSQL_TYPE_MEDIUM_BLOB:statistic = STAT_TEXT_TYPE_FETCHED_BLOB; break;
 					case MYSQL_TYPE_LONG_BLOB:	statistic = STAT_TEXT_TYPE_FETCHED_BLOB; break;