Am 10.09.2025 um 15:23 schrieb Jakub Zelenka:
If __sleep is used to serialize private properties (not all but just some), then those property names are stored in the mangled format ("\x00" . self::class . "\x00" prefix). It means to make it compatible in __serialize, the application has to mangle property names - this can be done either manually prefixing the name or using get_mangled_object_vars and filter the mangled names. Alternatively it could use __serialize with the new names but then it will need to deal with new and old (mangled) formats in __unserialize. In any case it means that the users will be required to deal with the mangled property name and get some understanding of mangling.
On the off-chance this might be useful for somebody following this thread, this is what the prefixing approach looks like:
https://github.com/sebastianbergmann/php-code-coverage/blob/12.3.7/src/CodeCoverage.php#L92-L110
