diff --git a/zmq.c b/zmq.c
index 942e69b..0ccabd9 100644
--- a/zmq.c
+++ b/zmq.c
@@ -235,7 +235,11 @@ php_zmq_context *php_zmq_context_get(zend_long io_threads, zend_bool is_persiste
 		le.type = php_zmq_context_list_entry();
 		le.ptr  = context;
 
+#if PHP_VERSION_ID < 70300
 		GC_REFCOUNT(&le) = 1;
+#else
+		GC_SET_REFCOUNT(&le, 1);
+#endif
 
 		/* plist_key is not a persistent allocated key, thus we use str_update here */
 		if (zend_hash_str_update_mem(&EG(persistent_list), plist_key->val, plist_key->len, &le, sizeof(le)) == NULL) {
@@ -535,7 +539,11 @@ void php_zmq_socket_store(php_zmq_socket *zmq_sock_p, zend_long type, zend_strin
 	le.type = php_zmq_socket_list_entry();
 	le.ptr  = zmq_sock_p;
 
+#if PHP_VERSION_ID < 70300
 	GC_REFCOUNT(&le) = 1;
+#else
+	GC_SET_REFCOUNT(&le, 1);
+#endif
 
 	plist_key = php_zmq_socket_plist_key(type, persistent_id, use_shared_ctx);
 
diff --git a/zmq_helpers.c b/zmq_helpers.c
index 5d0c801..964539a 100644
--- a/zmq_helpers.c
+++ b/zmq_helpers.c
@@ -63,7 +63,7 @@ char *php_zmq_printable_func (zend_fcall_info *fci, zend_fcall_info_cache *fci_c
 	char *buffer = NULL;
 
 	if (fci->object) {
-		spprintf (&buffer, 0, "%s::%s", fci->object->ce->name->val, fci_cache->function_handler->common.function_name);
+		spprintf (&buffer, 0, "%s::%s", fci->object->ce->name->val, ZSTR_VAL(fci_cache->function_handler->common.function_name));
 	} else {
 		if (Z_TYPE (fci->function_name) == IS_OBJECT) {
 			spprintf (&buffer, 0, "%s", Z_OBJCE (fci->function_name)->name->val);
@@ -74,4 +74,4 @@ char *php_zmq_printable_func (zend_fcall_info *fci, zend_fcall_info_cache *fci_c
 	}
 	return buffer;
 }
-/* }}} */
\ No newline at end of file
+/* }}} */
diff --git a/zmq_pollset.c b/zmq_pollset.c
index 59f8c09..8363c23 100644
--- a/zmq_pollset.c
+++ b/zmq_pollset.c
@@ -169,7 +169,7 @@ static
 zend_string *s_create_key(zval *entry)
 {
 	if (Z_TYPE_P(entry) == IS_RESOURCE) {
-		return strpprintf(0, "r:%ld", Z_RES_P(entry)->handle);
+		return strpprintf(0, "r:%d", Z_RES_P(entry)->handle);
 	}
 	else {
 		zend_string *hash = php_spl_object_hash(entry);
@@ -222,7 +222,7 @@ size_t php_zmq_pollset_num_items(php_zmq_pollset *set)
 zend_string *php_zmq_pollset_add(php_zmq_pollset *set, zval *entry, int events, int *error) 
 {
 	zend_string *key;
-	size_t num_items, index;
+	size_t index;
 	zmq_pollitem_t item;
 
 	*error = 0;
@@ -233,7 +233,7 @@ zend_string *php_zmq_pollset_add(php_zmq_pollset *set, zval *entry, int events,
 		return key;
 	}
 
-	num_items = php_zmq_pollset_num_items(set);
+	php_zmq_pollset_num_items(set);
 	memset(&item, 0, sizeof(zmq_pollitem_t));
 
 	if (Z_TYPE_P(entry) == IS_RESOURCE) {