installing ZABBIX 6 on ubuntu 18.04 / nginx/postgres

[dominix]

went fine, but on web display pages are full of pg errors: any workaround ?

[LIST][*]pg_escape_string(): Automatic fetching of PostgreSQL connection is deprecated [actionconf.php:22 → require_once() → ZBase->run() → ZBase->initDB() → DBconnect() → PostgresqlDbBackend->init() → zbx_dbstr() → pg_escape_string() in include/db.inc.php:913]
	pg_parameter_status(): Automatic fetching of PostgreSQL connection is deprecated [actionconf.php:22 → require_once() → ZBase->run() → ZBase->initDB() → DBconnect() → PostgresqlDbBackend->init() → pg_parameter_status() in include/classes/db/PostgresqlDbBackend.php:249]
	pg_escape_string(): Automatic fetching of PostgreSQL connection is deprecated [actionconf.php:22 → require_once() → ZBase->run() → ZBase->initDB() → DBconnect() → DbBackend->checkDbVersion() → PostgresqlDbBackend->checkDbVersionTable() → zbx_dbstr() → pg_escape_string() in include/db.inc.php:913]
	pg_escape_string(): Automatic fetching of PostgreSQL connection is deprecated [actionconf.php:22 → require_once() → ZBase->run() → ZBase->initDB() → DBconnect() → DbBackend->checkDbVersion() → PostgresqlDbBackend->checkDbVersionTable() → zbx_dbstr() → pg_escape_string() in include/db.inc.php:913]
	pg_escape_string(): Automatic fetching of PostgreSQL connection is deprecated [actionconf.php:22 → require_once() → ZBase->run() → ZBase->initDB() → DBconnect() → DbBackend->checkDbVersion() → PostgresqlDbBackend->checkDbVersionTable() → zbx_dbstr() → pg_escape_string() in include/db.inc.php:913]
	Return type of CCookieSession::open($save_path, $session_name) should either be compatible with SessionHandlerInterface::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice [actionconf.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CAutoloader->loadClass() → require() → CAutoloader->loadClass() → require() in include/classes/core/CCookieSession.php:25]
	Return type of CCookieSession::close() should either be compatible with SessionHandlerInterface::close(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice [actionconf.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CAutoloader->loadClass() → require() → CAutoloader->loadClass() → require() in include/classes/core/CCookieSession.php:25]
	Return type of CCookieSession::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice [actionconf.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CAutoloader->loadClass() → require() → CAutoloader->loadClass() → require() in include/classes/core/CCookieSession.php:25]
	Return type of CCookieSession::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice [actionconf.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CAutoloader->loadClass() → require() → CAutoloader->loadClass() → require() in include/classes/core/CCookieSession.php:25]
	Return type of CCookieSession::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice [actionconf.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CAutoloader->loadClass() → require() → CAutoloader->loadClass() → require() in include/classes/core/CCookieSession.php:25]
	Return type of CCookieSession::gc($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 [actionconf.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CAutoloader->loadClass() → require() → CAutoloader->loadClass() → require() in include/classes/core/CCookieSession.php:25]
	pg_escape_string(): Automatic fetching of PostgreSQL connection is deprecated [actionconf.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CWebUser::checkAuthentication() → CApiWrapper->__call() → CFrontendApiWrapper->callMethod() → CApiWrapper->callMethod() → CFrontendApiWrapper->callClientMethod() → CLocalApiClient->callMethod() → CUser->checkAuthentication() → DB::select() → DB::makeSql() → DB::createSelectQueryParts() → DB::applyQueryFilterOptions() → dbConditionString() → zbx_dbstr() → pg_escape_string() in include/db.inc.php:913]
	pg_escape_string(): Automatic fetching of PostgreSQL connection is deprecated [actionconf.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CWebUser::checkAuthentication() → CApiWrapper->__call() → CFrontendApiWrapper->callMethod() → CApiWrapper->callMethod() → CFrontendApiWrapper->callClientMethod() → CLocalApiClient->callMethod() → CUser->checkAuthentication() → CUser->addExtraFields() → CUser->getUserType() → zbx_dbstr() → pg_escape_string() in include/db.inc.php:913]
	pg_escape_string(): Automatic fetching of PostgreSQL connection is deprecated [actionconf.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CWebUser::checkAuthentication() → CApiWrapper->__call() → CFrontendApiWrapper->callMethod() → CApiWrapper->callMethod() → CFrontendApiWrapper->callClientMethod() → CLocalApiClient->callMethod() → CUser->checkAuthentication() → DB::update() → DB::checkValueTypes() → zbx_dbstr() → pg_escape_string() in include/db.inc.php:913]
	pg_escape_string(): Automatic fetching of PostgreSQL connection is deprecated [actionconf.php:22 → require_once() → ZBase->run() → ZBase->authenticateUser() → CWebUser::checkAuthentication() → CApiWrapper->__call() → CFrontendApiWrapper->callMethod() → CApiWrapper->callMethod() → CFrontendApiWrapper->callClientMethod() → CLocalApiClient->callMethod() → CUser->checkAuthentication() → DB::update() → dbConditionString() → zbx_dbstr() → pg_escape_string() in include/db.inc.php:913]
	pg_escape_string(): Automatic fetching of PostgreSQL connection is deprecated [actionconf.php:22 → require_once() → ZBase->run() → ZBase->initComponents() → CMenuHelper::getMainMenu() → CWebUser::checkAccess() → CRoleHelper::checkAccess() → CRoleHelper::loadRoleRules() → CApiWrapper->__call() → CFrontendApiWrapper->callMethod() → CApiWrapper->callMethod() → CFrontendApiWrapper->callClientMethod() → CLocalApiClient->callMethod() → CRole->get() → CApiService->createSelectQuery() → CApiService->createSelectQueryParts() → CRole->applyQueryFilterOptions() → CApiService->applyQueryFilterOptions() → dbConditionString() → zbx_dbstr() → pg_escape_string() in include/db.inc.php:913]
	pg_escape_string(): Automatic fetching of PostgreSQL connection is deprecated [actionconf.php:22 → require_once() → ZBase->run() → CViewHelper::loadSidebarMode() → CProfile::get() → zbx_dbstr() → pg_escape_string() in include/db.inc.php:913][/LIST]

[dominix]

here I try to show how it render in the web browser.

[rexfordnyrk]

Hello dominix Please were you able to find a way around these errors?
How did you solve this?
Has it got to do with php version? I am using 8.1 on RHEL with PGSQL 12

[rexfordnyrk]

I guess it turns out to be a php problem. I rolled back to php 7.4 and everything works great!

[cyber]

If you would read docs...

PHP

7.2.5 or later

PHP 8.0 is not supported.

[dominix]

I installed ZABBIX on another server, and dropped this one