diff --git a/ext/snmp/snmp.stub.php b/ext/snmp/snmp.stub.php
index db61d1c0d6a1a..956af81d5991e 100644
--- a/ext/snmp/snmp.stub.php
+++ b/ext/snmp/snmp.stub.php
@@ -2,18 +2,18 @@
 
 /** @generate-class-entries */
 
-function snmpget(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): stdClass|array|string|bool {}
+function snmpget(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): mixed {}
 
-function snmpgetnext(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): stdClass|array|string|bool {}
+function snmpgetnext(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): mixed {}
 
-function snmpwalk(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): array|bool {}
+function snmpwalk(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): array|false {}
 
-function snmprealwalk(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): array|bool {}
+function snmprealwalk(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): array|false {}
 
 /** @alias snmprealwalk */
-function snmpwalkoid(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): array|bool {}
+function snmpwalkoid(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): array|false {}
 
-function snmpset(string $hostname, string $community, array|string $object_id, array|string $type, array|string $value, int $timeout = -1, int $retries = -1): array|bool {}
+function snmpset(string $hostname, string $community, array|string $object_id, array|string $type, array|string $value, int $timeout = -1, int $retries = -1): bool {}
 
 function snmp_get_quick_print(): bool {}
 
@@ -26,46 +26,46 @@ function snmp_set_oid_output_format(int $format): bool {}
 /** @alias snmp_set_oid_output_format */
 function snmp_set_oid_numeric_print(int $format): bool {}
 
-function snmp2_get(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): stdClass|array|string|bool {}
+function snmp2_get(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): mixed {}
 
-function snmp2_getnext(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): stdClass|array|string|bool {}
+function snmp2_getnext(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): mixed {}
 
-function snmp2_walk(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): array|bool {}
+function snmp2_walk(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): array|false {}
 
-function snmp2_real_walk(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): array|bool {}
+function snmp2_real_walk(string $hostname, string $community, array|string $object_id, int $timeout = -1, int $retries = -1): array|false {}
 
-function snmp2_set(string $hostname, string $community, array|string $object_id, array|string $type, array|string $value, int $timeout = -1, int $retries = -1): array|bool {}
+function snmp2_set(string $hostname, string $community, array|string $object_id, array|string $type, array|string $value, int $timeout = -1, int $retries = -1): bool {}
 
 function snmp3_get(
     string $hostname, string $security_name, string $security_level,
     string $auth_protocol, string $auth_passphrase,
     string $privacy_protocol, string $privacy_passphrase,
-    array|string $object_id, int $timeout = -1, int $retries = -1): stdClass|array|string|bool {}
+    array|string $object_id, int $timeout = -1, int $retries = -1): mixed {}
 
 function snmp3_getnext(
     string $hostname, string $security_name, string $security_level,
     string $auth_protocol, string $auth_passphrase,
     string $privacy_protocol, string $privacy_passphrase,
-    array|string $object_id, int $timeout = -1, int $retries = -1): stdClass|array|string|bool {}
+    array|string $object_id, int $timeout = -1, int $retries = -1): mixed {}
 
 function snmp3_walk(
     string $hostname, string $security_name, string $security_level,
     string $auth_protocol, string $auth_passphrase,
     string $privacy_protocol, string $privacy_passphrase,
-    array|string $object_id, int $timeout = -1, int $retries = -1): array|bool {}
+    array|string $object_id, int $timeout = -1, int $retries = -1): array|false {}
 
 function snmp3_real_walk(
     string $hostname, string $security_name, string $security_level,
     string $auth_protocol, string $auth_passphrase,
     string $privacy_protocol, string $privacy_passphrase,
-    array|string $object_id, int $timeout = -1, int $retries = -1): array|bool {}
+    array|string $object_id, int $timeout = -1, int $retries = -1): array|false {}
 
 function snmp3_set(
     string $hostname, string $security_name, string $security_level,
     string $auth_protocol, string $auth_passphrase,
     string $privacy_protocol, string $privacy_passphrase,
     array|string $object_id, array|string $type, array|string $value,
-    int $timeout = -1, int $retries = -1): array|bool {}
+    int $timeout = -1, int $retries = -1): bool {}
 
 function snmp_set_valueretrieval(int $method): bool {}
 
@@ -87,32 +87,32 @@ class SNMP
 
     public function __construct(int $version, string $hostname, string $community, int $timeout = -1, int $retries = -1) {}
 
-    /** @return bool */
-    public function close() {}
+    /** @tentative-return-type */
+    public function close(): bool {}
 
-    /** @return bool */
+    /** @tentative-return-type */
     public function setSecurity(
         string $securityLevel, string $authProtocol = "", string $authPassphrase = "",
         string $privacyProtocol = "", string $privacyPassphrase = "",
-        string $contextName = "", string $contextEngineId = "") {}
+        string $contextName = "", string $contextEngineId = ""): bool {}
 
-    /** @return array|bool */
-    public function get(array|string $objectId, bool $preserveKeys = false) {}
+    /** @tentative-return-type */
+    public function get(array|string $objectId, bool $preserveKeys = false): mixed {}
 
-    /** @return array|bool */
-    public function getnext(array|string $objectId) {}
+    /** @tentative-return-type */
+    public function getnext(array|string $objectId): mixed {}
 
-    /** @return array|bool */
-    public function walk(array|string $objectId, bool $suffixAsKey = false, int $maxRepetitions = -1, int $nonRepeaters = -1) {}
+    /** @tentative-return-type */
+    public function walk(array|string $objectId, bool $suffixAsKey = false, int $maxRepetitions = -1, int $nonRepeaters = -1): array|false {}
 
-    /** @return array|bool */
-    public function set(array|string $objectId, array|string $type, array|string $value) {}
+    /** @tentative-return-type */
+    public function set(array|string $objectId, array|string $type, array|string $value): bool {}
 
-    /** @return int */
-    public function getErrno() {}
+    /** @tentative-return-type */
+    public function getErrno(): int {}
 
-    /** @return string */
-    public function getError() {}
+    /** @tentative-return-type */
+    public function getError(): string {}
 }
 
 class SNMPException extends RuntimeException
diff --git a/ext/snmp/snmp_arginfo.h b/ext/snmp/snmp_arginfo.h
index 8088755169fb9..7e3a2a26b2e6b 100644
--- a/ext/snmp/snmp_arginfo.h
+++ b/ext/snmp/snmp_arginfo.h
@@ -1,7 +1,7 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: 5258c5796aca15e369dd72c0a8ed4dc1df31ce9d */
+ * Stub hash: 75ba939cab1a18a8e1c2836e0c0bbab9d310ba2b */
 
-ZEND_BEGIN_ARG_WITH_RETURN_OBJ_TYPE_MASK_EX(arginfo_snmpget, 0, 3, stdClass, MAY_BE_ARRAY|MAY_BE_STRING|MAY_BE_BOOL)
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_snmpget, 0, 3, IS_MIXED, 0)
 	ZEND_ARG_TYPE_INFO(0, hostname, IS_STRING, 0)
 	ZEND_ARG_TYPE_INFO(0, community, IS_STRING, 0)
 	ZEND_ARG_TYPE_MASK(0, object_id, MAY_BE_ARRAY|MAY_BE_STRING, NULL)
@@ -11,7 +11,7 @@ ZEND_END_ARG_INFO()
 
 #define arginfo_snmpgetnext arginfo_snmpget
 
-ZEND_BEGIN_ARG_WITH_RETURN_TYPE_MASK_EX(arginfo_snmpwalk, 0, 3, MAY_BE_ARRAY|MAY_BE_BOOL)
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_MASK_EX(arginfo_snmpwalk, 0, 3, MAY_BE_ARRAY|MAY_BE_FALSE)
 	ZEND_ARG_TYPE_INFO(0, hostname, IS_STRING, 0)
 	ZEND_ARG_TYPE_INFO(0, community, IS_STRING, 0)
 	ZEND_ARG_TYPE_MASK(0, object_id, MAY_BE_ARRAY|MAY_BE_STRING, NULL)
@@ -23,7 +23,7 @@ ZEND_END_ARG_INFO()
 
 #define arginfo_snmpwalkoid arginfo_snmpwalk
 
-ZEND_BEGIN_ARG_WITH_RETURN_TYPE_MASK_EX(arginfo_snmpset, 0, 5, MAY_BE_ARRAY|MAY_BE_BOOL)
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_snmpset, 0, 5, _IS_BOOL, 0)
 	ZEND_ARG_TYPE_INFO(0, hostname, IS_STRING, 0)
 	ZEND_ARG_TYPE_INFO(0, community, IS_STRING, 0)
 	ZEND_ARG_TYPE_MASK(0, object_id, MAY_BE_ARRAY|MAY_BE_STRING, NULL)
@@ -58,7 +58,7 @@ ZEND_END_ARG_INFO()
 
 #define arginfo_snmp2_set arginfo_snmpset
 
-ZEND_BEGIN_ARG_WITH_RETURN_OBJ_TYPE_MASK_EX(arginfo_snmp3_get, 0, 8, stdClass, MAY_BE_ARRAY|MAY_BE_STRING|MAY_BE_BOOL)
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_snmp3_get, 0, 8, IS_MIXED, 0)
 	ZEND_ARG_TYPE_INFO(0, hostname, IS_STRING, 0)
 	ZEND_ARG_TYPE_INFO(0, security_name, IS_STRING, 0)
 	ZEND_ARG_TYPE_INFO(0, security_level, IS_STRING, 0)
@@ -73,7 +73,7 @@ ZEND_END_ARG_INFO()
 
 #define arginfo_snmp3_getnext arginfo_snmp3_get
 
-ZEND_BEGIN_ARG_WITH_RETURN_TYPE_MASK_EX(arginfo_snmp3_walk, 0, 8, MAY_BE_ARRAY|MAY_BE_BOOL)
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_MASK_EX(arginfo_snmp3_walk, 0, 8, MAY_BE_ARRAY|MAY_BE_FALSE)
 	ZEND_ARG_TYPE_INFO(0, hostname, IS_STRING, 0)
 	ZEND_ARG_TYPE_INFO(0, security_name, IS_STRING, 0)
 	ZEND_ARG_TYPE_INFO(0, security_level, IS_STRING, 0)
@@ -88,7 +88,7 @@ ZEND_END_ARG_INFO()
 
 #define arginfo_snmp3_real_walk arginfo_snmp3_walk
 
-ZEND_BEGIN_ARG_WITH_RETURN_TYPE_MASK_EX(arginfo_snmp3_set, 0, 10, MAY_BE_ARRAY|MAY_BE_BOOL)
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_snmp3_set, 0, 10, _IS_BOOL, 0)
 	ZEND_ARG_TYPE_INFO(0, hostname, IS_STRING, 0)
 	ZEND_ARG_TYPE_INFO(0, security_name, IS_STRING, 0)
 	ZEND_ARG_TYPE_INFO(0, security_level, IS_STRING, 0)
@@ -122,10 +122,10 @@ ZEND_BEGIN_ARG_INFO_EX(arginfo_class_SNMP___construct, 0, 0, 3)
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, retries, IS_LONG, 0, "-1")
 ZEND_END_ARG_INFO()
 
-ZEND_BEGIN_ARG_INFO_EX(arginfo_class_SNMP_close, 0, 0, 0)
+ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_TYPE_INFO_EX(arginfo_class_SNMP_close, 0, 0, _IS_BOOL, 0)
 ZEND_END_ARG_INFO()
 
-ZEND_BEGIN_ARG_INFO_EX(arginfo_class_SNMP_setSecurity, 0, 0, 1)
+ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_TYPE_INFO_EX(arginfo_class_SNMP_setSecurity, 0, 1, _IS_BOOL, 0)
 	ZEND_ARG_TYPE_INFO(0, securityLevel, IS_STRING, 0)
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, authProtocol, IS_STRING, 0, "\"\"")
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, authPassphrase, IS_STRING, 0, "\"\"")
@@ -135,31 +135,33 @@ ZEND_BEGIN_ARG_INFO_EX(arginfo_class_SNMP_setSecurity, 0, 0, 1)
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, contextEngineId, IS_STRING, 0, "\"\"")
 ZEND_END_ARG_INFO()
 
-ZEND_BEGIN_ARG_INFO_EX(arginfo_class_SNMP_get, 0, 0, 1)
+ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_TYPE_INFO_EX(arginfo_class_SNMP_get, 0, 1, IS_MIXED, 0)
 	ZEND_ARG_TYPE_MASK(0, objectId, MAY_BE_ARRAY|MAY_BE_STRING, NULL)
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, preserveKeys, _IS_BOOL, 0, "false")
 ZEND_END_ARG_INFO()
 
-ZEND_BEGIN_ARG_INFO_EX(arginfo_class_SNMP_getnext, 0, 0, 1)
+ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_TYPE_INFO_EX(arginfo_class_SNMP_getnext, 0, 1, IS_MIXED, 0)
 	ZEND_ARG_TYPE_MASK(0, objectId, MAY_BE_ARRAY|MAY_BE_STRING, NULL)
 ZEND_END_ARG_INFO()
 
-ZEND_BEGIN_ARG_INFO_EX(arginfo_class_SNMP_walk, 0, 0, 1)
+ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_TYPE_MASK_EX(arginfo_class_SNMP_walk, 0, 1, MAY_BE_ARRAY|MAY_BE_FALSE)
 	ZEND_ARG_TYPE_MASK(0, objectId, MAY_BE_ARRAY|MAY_BE_STRING, NULL)
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, suffixAsKey, _IS_BOOL, 0, "false")
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, maxRepetitions, IS_LONG, 0, "-1")
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, nonRepeaters, IS_LONG, 0, "-1")
 ZEND_END_ARG_INFO()
 
-ZEND_BEGIN_ARG_INFO_EX(arginfo_class_SNMP_set, 0, 0, 3)
+ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_TYPE_INFO_EX(arginfo_class_SNMP_set, 0, 3, _IS_BOOL, 0)
 	ZEND_ARG_TYPE_MASK(0, objectId, MAY_BE_ARRAY|MAY_BE_STRING, NULL)
 	ZEND_ARG_TYPE_MASK(0, type, MAY_BE_ARRAY|MAY_BE_STRING, NULL)
 	ZEND_ARG_TYPE_MASK(0, value, MAY_BE_ARRAY|MAY_BE_STRING, NULL)
 ZEND_END_ARG_INFO()
 
-#define arginfo_class_SNMP_getErrno arginfo_class_SNMP_close
+ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_TYPE_INFO_EX(arginfo_class_SNMP_getErrno, 0, 0, IS_LONG, 0)
+ZEND_END_ARG_INFO()
 
-#define arginfo_class_SNMP_getError arginfo_class_SNMP_close
+ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_TYPE_INFO_EX(arginfo_class_SNMP_getError, 0, 0, IS_STRING, 0)
+ZEND_END_ARG_INFO()
 
 
 ZEND_FUNCTION(snmpget);