diff --git a/Zend/zend_execute.c b/Zend/zend_execute.c
index 385fe9af0bbfe..940c2f98b382f 100644
--- a/Zend/zend_execute.c
+++ b/Zend/zend_execute.c
@@ -5454,9 +5454,9 @@ static zend_always_inline uint32_t zend_get_arg_offset_by_name(
 	if (EXPECTED(fbc->type == ZEND_USER_FUNCTION)
 			|| EXPECTED(fbc->common.fn_flags & ZEND_ACC_USER_ARG_INFO)) {
 		for (uint32_t i = 0; i < num_args; i++) {
-			zend_arg_info *arg_info = &fbc->op_array.arg_info[i];
+			zend_arg_info *arg_info = &fbc->common.arg_info[i];
 			if (zend_string_equals(arg_name, arg_info->name)) {
-				if (!fbc->op_array.refcount || !(fbc->op_array.fn_flags & ZEND_ACC_CLOSURE)) {
+				if (fbc->type == ZEND_USER_FUNCTION && (!fbc->op_array.refcount || !(fbc->op_array.fn_flags & ZEND_ACC_CLOSURE))) {
 					*cache_slot = unique_id;
 					*(uintptr_t *)(cache_slot + 1) = i;
 				}
@@ -5477,7 +5477,10 @@ static zend_always_inline uint32_t zend_get_arg_offset_by_name(
 	}
 
 	if (fbc->common.fn_flags & ZEND_ACC_VARIADIC) {
-		if (fbc->type == ZEND_INTERNAL_FUNCTION || !fbc->op_array.refcount || !(fbc->op_array.fn_flags & ZEND_ACC_CLOSURE)) {
+		if ((fbc->type == ZEND_USER_FUNCTION
+		  && (!fbc->op_array.refcount || !(fbc->op_array.fn_flags & ZEND_ACC_CLOSURE)))
+		 || (fbc->type == ZEND_INTERNAL_FUNCTION
+		  && !(fbc->common.fn_flags & ZEND_ACC_USER_ARG_INFO))) {
 			*cache_slot = unique_id;
 			*(uintptr_t *)(cache_slot + 1) = fbc->common.num_args;
 		}
diff --git a/ext/curl/interface.c b/ext/curl/interface.c
index e9e9cd5e409af..4bd6cd64fa670 100644
--- a/ext/curl/interface.c
+++ b/ext/curl/interface.c
@@ -1544,37 +1544,23 @@ static inline zend_result build_mime_structure_from_hash(php_curl *ch, zval *zpo
 /* {{{ Copy a cURL handle along with all of it's preferences */
 PHP_FUNCTION(curl_copy_handle)
 {
-	php_curl	*ch;
-	CURL		*cp;
 	zval		*zid;
-	php_curl	*dupch;
-	zval		*postfields;
 
 	ZEND_PARSE_PARAMETERS_START(1,1)
 		Z_PARAM_OBJECT_OF_CLASS(zid, curl_ce)
 	ZEND_PARSE_PARAMETERS_END();
 
-	ch = Z_CURL_P(zid);
-
-	cp = curl_easy_duphandle(ch->cp);
-	if (!cp) {
+	zend_object *new_object = Z_OBJ_P(zid)->handlers->clone_obj(Z_OBJ_P(zid));
+	if (EG(exception)) {
+		if (new_object != NULL) {
+			OBJ_RELEASE(new_object);
+		}
+		zend_clear_exception();
 		php_error_docref(NULL, E_WARNING, "Cannot duplicate cURL handle");
 		RETURN_FALSE;
 	}
 
-	dupch = init_curl_handle_into_zval(return_value);
-	dupch->cp = cp;
-
-	_php_setup_easy_copy_handlers(dupch, ch);
-
-	postfields = &ch->postfields;
-	if (Z_TYPE_P(postfields) != IS_UNDEF) {
-		if (build_mime_structure_from_hash(dupch, postfields) == FAILURE) {
-			zval_ptr_dtor(return_value);
-			php_error_docref(NULL, E_WARNING, "Cannot rebuild mime structure");
-			RETURN_FALSE;
-		}
-	}
+	RETURN_OBJ(new_object);
 }
 /* }}} */