mysqli::real_connect(): Passing null to parameter #7 ($flags) of type int is deprecated [zabbix.php:22 → require_once() → ZBase->run() → ZBase->initDB() → DBconnect() → MysqlDbBackend->connect() → mysqli->real_connect() in include/classes/db/MysqlDbBackend.php:173]
    Return type of CCookieSession::open($save_path, $session_name) should either be compatible with SessionHandlerInterface::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice [zabbix.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CAutoloader->loadClass() → require() → CAutoloader->loadClass() → require() in include/classes/core/CCookieSession.php:25]
    Return type of CCookieSession::close() should either be compatible with SessionHandlerInterface::close(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice [zabbix.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CAutoloader->loadClass() → require() → CAutoloader->loadClass() → require() in include/classes/core/CCookieSession.php:25]
    Return type of CCookieSession::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice [zabbix.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CAutoloader->loadClass() → require() → CAutoloader->loadClass() → require() in include/classes/core/CCookieSession.php:25]
    Return type of CCookieSession::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice [zabbix.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CAutoloader->loadClass() → require() → CAutoloader->loadClass() → require() in include/classes/core/CCookieSession.php:25]
    Return type of CCookieSession::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice [zabbix.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CAutoloader->loadClass() → require() → CAutoloader->loadClass() → require() in include/classes/core/CCookieSession.php:25]
    Return type of CCookieSession::gc($maxlifetime) should either be compatible with SessionHandlerInterface::gc(int $max_lifetime): int|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice [zabbix.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CAutoloader->loadClass() → require() → CAutoloader->loadClass() → require() in include/classes/core/CCookieSession.php:25] 

diff include/classes/core/CCookieSession.php include/classes/core/CCookieSession.php.original
49c49
<       public function close() : bool {
---
>       public function close() {
62c62
<       public function destroy($session_id) : bool {
---
>       public function destroy($session_id) {
75,76c75,76
<       public function gc($maxlifetime) : int|false {
<               return 1;
---
>       public function gc($maxlifetime) {
>               return true;
87c87
<       public function open($save_path, $session_name) : bool {
---
>       public function open($save_path, $session_name) {
100c100
<       public function read($session_id) : string|false {
---
>       public function read($session_id) {
104c104
<                       return false;
---
>                       return '';
122c122
<       public function write($session_id, $session_data) : bool {
---
>       public function write($session_id, $session_data) { 

diff include/classes/screens/CScreenProblem.php include/classes/screens/CScreenProblem.php.original
699,704d698
<         $clock_datetime = new DateTime();
<         $last_clock_datetime = new DateTime();
<
<         $clock_datetime->setTimestamp($clock);
<         $last_clock_datetime->setTimestamp($last_clock);
<
706d699
<
710,711c703,704
<             elseif ($last_clock_datetime->format('H') != $clock_datetime->format('H')) {
<                 $breakpoint = $last_clock_datetime->format('H:00');
---
>                       elseif (strftime('%H', $last_clock) != strftime('%H', $clock)) {
>                               $breakpoint = strftime('%H:00', $last_clock);
720c713
<                       $breakpoint = $last_clock_datetime->format('Y');
---
>                       $breakpoint = strftime('%Y', $last_clock);
722,723c715,716
<         elseif ($last_clock_datetime->format('Ym') != $clock_datetime->format('ym')) {
<                       $breakpoint = getMonthCaption($last_clock_datetime->format('m'));
---
>               elseif (strftime('%Y%m', $last_clock) != strftime('%Y%m', $clock)) {
>                       $breakpoint = getMonthCaption(strftime('%m', $last_clock)); 

diff include/classes/db/MysqlDbBackend.php include/classes/db/MysqlDbBackend.php.original
173,177c173
<         if (is_null($tls_mode)) {
<                   @$resource->real_connect($host, $user, $password, $dbname, $port);
<         } else {
<                   @$resource->real_connect($host, $user, $password, $dbname, $port, null, $tls_mode);
<         }
---
>               @$resource->real_connect($host, $user, $password, $dbname, $port, null, $tls_mode);