Getting object into array - php

Question

I'm not so advanced in PHP, just basic I can understand. I was trying an API and it returns it as object, how do I convert it to array? I did searched through stackoverflow and found lots of solution, but none works for me. $array returns empty array. Here is my code:-
while (1) {
$line = '';
$w->pollMessage();
$msgs = $w->getMessages();
foreach ($msgs as $m) {
print_r($msgs);
$array = json_decode(json_encode($msgs), true);
print_r($array);
}
And here is the result I get print_r($msgs):
Array
(
[0] => ProtocolNode Object
(
[tag:ProtocolNode:private] => message
[attributeHash:ProtocolNode:private] => Array
(
[from] => amy
[type] => text
[id] => 3EB0E191F15B831D244E
[t] => 1462939886
[notify] => Nick
)
[children:ProtocolNode:private] => Array
(
[0] => ProtocolNode Object
(
[tag:ProtocolNode:private] => enc
[attributeHash:ProtocolNode:private] => Array
(
[v] => 2
[type] => msg
)
[children:ProtocolNode:private] =>
[data:ProtocolNode:private] => 3
)
[1] => ProtocolNode Object
(
[tag:ProtocolNode:private] => body
[attributeHash:ProtocolNode:private] =>
[children:ProtocolNode:private] =>
[data:ProtocolNode:private] => good
)
)
[data:ProtocolNode:private] =>
)
)

Answer 1

I don't see your problem. You already have an array and do not need to handle with json. If you don't like it as array, you can simply cast it to an object.
$myArray = (object) $myArray;

Answer 2

Requirements: Walk a multiway object tree and apply a callback to each node.
Working demonstration at eval.in
Explanation:
1) There are a lot of private properties and I am not sure 'casting to an array' will let get at them.
2) If you have the original class then you may want to usesome of the methods on it.
The approach I used is:
a) Provide a 'tree walk' that will visit all the nodes in the tree. I am not concerned about order of visiting. Just to visit then all.
b) Rather than provide specific code to process the node. I provide a 'callback' hook.
c) As I don't have the class I create a simple one that will give me easy access to the private properties.
The Tree Walk function:
function walkProtocolNodes(\ProtocolNode $currentNode, /* callable */ $processNode)
{
$processNode($currentNode);
foreach ($currentNode->children as $nextNode) {
walkProtocolNodes($nextNode, $processNode);
}
return;
}
Sample processNode function:
All it does is append the attributesHash to the output array (outputResults)...
$processNode = function (\ProtocolNode $node) use (&$outputResults) {
$outputResults[] = $node->attributeHash;
};
Run the tree walk:
walkProtocolNodes($node1, $processNode);
The 'protocolNode' class I used:
class ProtocolNode {
private $tag = 'message';
private $attributeHash = array();
private $children = array();
private $data = 'good';
public function __construct($attrs = array()) {
$this->attributeHash = $attrs;
}
public function addChild(\ProtocolNode $node) {
$this->children[] = $node;
}
public function __get($propertyName) {
return $this->$propertyName;
}
}
See the demonstration to see the output