diff --git a/NEWS b/NEWS
index 376139b086feb..894ef13456b27 100644
--- a/NEWS
+++ b/NEWS
@@ -48,6 +48,10 @@ PHP                                                                        NEWS
 - MBString:
   . Fixed bug GH-17112 (Macro redefinitions). (nielsdos, cmb)
 
+- mysqli:
+  . Fixed failed assertion when accessing mysqli property after failed
+    reconnection. (Kamil Tekiela)
+
 - Opcache:
   . opcache_get_configuration() properly reports jit_prof_threshold. (cmb)
 
diff --git a/ext/mysqli/mysqli_prop.c b/ext/mysqli/mysqli_prop.c
index 279a93b3d3992..d90785a0c8192 100644
--- a/ext/mysqli/mysqli_prop.c
+++ b/ext/mysqli/mysqli_prop.c
@@ -37,15 +37,29 @@
 
 #define MYSQLI_GET_MYSQL(statusval) \
 MYSQL *p; \
-if (!obj->ptr || !(MY_MYSQL *)((MYSQLI_RESOURCE *)(obj->ptr))->ptr) { \
-	if (!quiet) { \
-		zend_throw_error(NULL, "%s object is already closed", ZSTR_VAL(obj->zo.ce->name)); \
+{ \
+	MYSQLI_RESOURCE *my_res = obj->ptr; \
+	MY_MYSQL *my_mysql; \
+	if (!my_res || !(my_mysql = (MY_MYSQL *)my_res->ptr)) { \
+		if (!quiet) { \
+			zend_throw_error(NULL, "%s object is already closed", ZSTR_VAL(obj->zo.ce->name)); \
+		} \
+		return FAILURE; \
 	} \
-	return FAILURE; \
-} else { \
-	CHECK_STATUS(statusval, quiet);\
-	p = (MYSQL *)((MY_MYSQL *)((MYSQLI_RESOURCE *)(obj->ptr))->ptr)->mysql;\
-}
+	if (my_res->status < statusval ) { \
+		if (!quiet) { \
+			zend_throw_error(NULL, "Property access is not allowed yet"); \
+		} \
+		return FAILURE; \
+	} \
+	p = (MYSQL *)my_mysql->mysql;\
+	if (!p) { \
+		if (!quiet) { \
+			zend_throw_error(NULL, "%s object is not fully initialized", ZSTR_VAL(obj->zo.ce->name)); \
+		} \
+		return FAILURE; \
+	} \
+} \
 
 #define MYSQLI_GET_RESULT(statusval) \
 MYSQL_RES *p; \
diff --git a/ext/mysqli/tests/mysqli_incomplete_initialization2.phpt b/ext/mysqli/tests/mysqli_incomplete_initialization2.phpt
new file mode 100644
index 0000000000000..6c73665291aaf
--- /dev/null
+++ b/ext/mysqli/tests/mysqli_incomplete_initialization2.phpt
@@ -0,0 +1,38 @@
+--TEST--
+host_info() dumps with assert after failed reconnect
+--EXTENSIONS--
+mysqli
+--SKIPIF--
+<?php
+require_once 'skipifconnectfailure.inc';
+?>
+--FILE--
+<?php
+include 'connect.inc';
+
+mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
+$mysqli = mysqli_init();
+
+$mysqli->connect($host, $user, $passwd, $db, $port, $socket);
+
+echo 'Success... ' . $mysqli->host_info . "\n";
+
+try {
+    $mysqli->connect($host, $user, $passwd, $db.'wrong', $port, $socket);
+} catch (mysqli_sql_exception $e) {
+    echo "Error: " . $e->getMessage() . "\n";
+}
+
+try {
+    echo $mysqli->host_info . "\n";
+} catch (Error $e) {
+    echo "Error: " . $e->getMessage() . "\n";
+}
+
+print "done!";
+?>
+--EXPECTF--
+Success... %s via %s
+Error: Unknown database 'testwrong'
+Error: mysqli object is not fully initialized
+done!