Unexpected behavior with JSON serialization of PHP objects implementing ArrayAccess in PHP 8.2
Does anyone know how to I recently switched to I'm sure I'm missing something obvious here, but I'm encountering an issue while trying to serialize an object that implements the `ArrayAccess` interface into JSON. The object in question is structured as follows: ```php class MyArrayAccess implements ArrayAccess { private $container = []; public function offsetSet($offset, $value) { if (is_null($offset)) { $this->container[] = $value; } else { $this->container[$offset] = $value; } } public function offsetExists($offset) { return isset($this->container[$offset]); } public function offsetUnset($offset) { unset($this->container[$offset]); } public function offsetGet($offset) { return isset($this->container[$offset]) ? $this->container[$offset] : null; } } ``` When I try to serialize an instance of this class using `json_encode`, I expect to see the contents of the `$container` array reflected in the JSON output. However, I get an empty JSON object instead, like this: ``` {} ``` Here's how I am testing it: ```php $arrayAccess = new MyArrayAccess(); $arrayAccess['key1'] = 'value1'; $arrayAccess['key2'] = 'value2'; $json = json_encode($arrayAccess); var_dump($json); ``` I have tried implementing a `JsonSerializable` interface in the class to override the default serialization behavior, but it still returns an empty object. Here’s the modified class with the `JsonSerializable` interface: ```php class MyArrayAccess implements ArrayAccess, JsonSerializable { private $container = []; public function jsonSerialize() { return $this->container; } // other methods remain the same... } ``` Even after this change, I still see empty JSON output. I’ve checked the PHP documentation and confirmed that the `JsonSerializable` interface is supposed to work with `json_encode`, so I'm unsure why this isn’t functioning as expected. Is there a step I’m missing, or a best practice for handling `ArrayAccess` with JSON serialization in PHP 8.2? What's the best practice here? For context: I'm using Php on Ubuntu 20.04. Any examples would be super helpful. For context: I'm using Php on Windows 10. Am I approaching this the right way?