PHP-7.4 compatibility

Author: m6w6

msgpack_pack.c

@@ -409,11 +409,11 @@ static inline void msgpack_serialize_object(smart_str *buf, zval *val, HashTable
 #endif
 
 #if PHP_VERSION_ID >= 70400
-    if (ce && ce->__serialize) {
+    if (IS_MAGIC_SERIALIZABLE(ce)) {
         zval retval, obj;
 
         ZVAL_COPY(&obj, val_noref);
-        zend_call_known_instance_method_with_0_params(Z_OBJCE(obj)->__serialize, Z_OBJ(obj), &retval);
+        CALL_MAGIC_SERIALIZE(ce, Z_OBJ(obj), &retval);
 
         if (!EG(exception)) {
             if (Z_TYPE(retval) == IS_ARRAY) {

msgpack_unpack.c

@@ -627,14 +627,13 @@ int msgpack_unserialize_map_item(msgpack_unserialize_data *unpack, zval **contai
                 msgpack_unserialize_class(container, Z_STR_P(val), 1);
 #if PHP_VERSION_ID >= 70400
             } else if (Z_TYPE_P(val) == IS_ARRAY) {
-                if (Z_TYPE_P(*container) == IS_OBJECT && (ce = Z_OBJCE_P(*container)) && ce->__unserialize) {
+                if (Z_TYPE_P(*container) == IS_OBJECT && IS_MAGIC_SERIALIZABLE((ce = Z_OBJCE_P(*container)))) {
                     zval param;
                     ZVAL_COPY(&param, val);
-                    zend_object *prev_exc = EG(exception);
 
-                    zend_call_known_instance_method_with_1_params(
-                        ce->__unserialize, Z_OBJ_P(*container), NULL, &param);
-                    if (EG(exception) != prev_exc) {
+                    CALL_MAGIC_UNSERIALIZE(ce, Z_OBJ_P(*container), NULL, &param);
+
+                    if (EG(exception)) {
                         GC_ADD_FLAGS(Z_OBJ_P(*container), IS_OBJ_DESTRUCTOR_CALLED);
                     }
                     zval_ptr_dtor(&param);

php_msgpack.h

@@ -59,4 +59,43 @@ PHP_MSGPACK_API int php_msgpack_unserialize(
 # define OBJ_FOR_PROP(zv) Z_OBJ_P(zv)
 #endif
 
+#if PHP_VERSION_ID >= 80000
+# define IS_MAGIC_SERIALIZABLE(ce) (ce && ce->__serialize)
+# define CALL_MAGIC_SERIALIZE(cep, zop, rvp) zend_call_known_instance_method_with_0_params((cep)->__serialize, zop, rvp)
+# define CALL_MAGIC_UNSERIALIZE(cep, zop, rvp, zsdap) zend_call_known_instance_method_with_1_params((cep)->__unserialize, zop, rvp, zsdap)
+#elif PHP_VERSION_ID >= 70400
+# define IS_MAGIC_SERIALIZABLE(ce) (ce && zend_hash_str_exists(&ce->function_table, ZEND_STRL("__serialize")))
+# define CALL_MAGIC_SERIALIZE(cep, zop, rvp) call_magic_serialize_fn(cep, zop, rvp, ZEND_STRL("__serialize"), 0, NULL)
+# define CALL_MAGIC_UNSERIALIZE(cep, zop, rvp, zsdap) call_magic_serialize_fn(cep, zop, rvp, ZEND_STRL("__unserialize"), 1, zsdap)
+static inline void call_magic_serialize_fn(zend_class_entry *ce, zend_object *object, zval *retval_ptr, const char *fn_str, size_t fn_len, int param_count, zval *params) {
+	zval retval;
+	zend_fcall_info fci;
+	zend_fcall_info_cache fcic;
+
+	fci.size = sizeof(fci);
+	fci.object = object;
+	fci.retval = retval_ptr ? retval_ptr : &retval;
+	fci.param_count = param_count;
+	fci.params = params;
+	ZVAL_UNDEF(&fci.function_name); /* Unused */
+
+	fcic.function_handler = zend_hash_str_find_ptr(&ce->function_table, fn_str, fn_len);
+	fcic.object = object;
+	fcic.called_scope = ce;
+
+	int result = zend_call_function(&fci, &fcic);
+	if (UNEXPECTED(result == FAILURE)) {
+		if (!EG(exception)) {
+			zend_error_noreturn(E_CORE_ERROR, "Couldn't execute method %s%s%s",
+				fcic.function_handler->common.scope ? ZSTR_VAL(fcic.function_handler->common.scope->name) : "",
+				fcic.function_handler->common.scope ? "::" : "", ZSTR_VAL(fcic.function_handler->common.function_name));
+		}
+	}
+
+	if (!retval_ptr) {
+		zval_ptr_dtor(&retval);
+    }
+}
+#endif
+
 #endif  /* PHP_MSGPACK_H */