PHP Assotiative array -> recursive traverse not working - php

Question

I have an associative array object :
[ {
"id": 15,
"owner_id": 1,
"container_info": {
"id": 1,
"container_id": 15
},
"filters": [
{
"id": 3,
"parent_id": null
},
{
"id": 6,
"parent_id": null
}
],
"children_recursive": [
{
"id": 7,
"owner_id": 1,
"container_info": null,
"filters": [
],
"children_recursive": [
{
"id": 8,
"owner_id": 1,
"container_info": null,
"filters": [
],
"children_recursive": [
]
}
]
},
{
"id": 16,
"owner_id": 1,
"container_info": {
"id": 2,
"container_id": 16
},
"filters": [
],
"children_recursive": [
]
},
]
}
]
I want to recursively loop through all object and their children_recursive key. And each children_recursive object (at any depth) needs to be processed
So I used :
public function traverseContainerRecursively($containerItems)
{
Log:info(' CHECK 1');
foreach ($containerItems as $containerItem) {
Log::info(json_encode($containerItem->id));
Log::info(json_encode($containerItem->owner_id));
Log::info(json_encode($containerItem->container_info));
Log::info(json_encode($containerItem->children_recursive));
}
Log::info(' CHECK 2');
foreach ($containerItems as $containerItem) {
Log::info(json_encode($containerItem['id']));
Log::info(json_encode($containerItem['owner_id']));
Log::info(json_encode($containerItem['container_info']));
Log::info(json_encode($containerItem['children_recursive']));
}
Log::info(' CHECK 3');
foreach ($containerItems as $key=>$value) {
if( $key == "children_recursive" ) {
Log::info(json_encode($value));
$this->traverseContainerRecursively($value);
}
} //foreach end
}
OUTPUT :
CHECK 1
15
1
null
null
CHECK 2
15
1
null
null
CHECK 3
{
"id": 15,
"owner_id": 1,
"container_info": {
"id": 1,
"container_id": 15
},
"filters": [
{
"id": 3,
"parent_id": null
},
{
"id": 6,
"parent_id": null
}
],
"children_recursive": [
{
"id": 7,
"owner_id": 1,
"container_info": null,
"filters": [
],
"children_recursive": [
{
"id": 8,
"owner_id": 1,
"container_info": null,
"filters": [
],
"children_recursive": [
]
}
]
},
{
"id": 16,
"owner_id": 1,
"container_info": {
"id": 2,
"container_id": 16
},
"filters": [
],
"children_recursive": [
]
},
]
} // i.e. the entire passed object
So I am unable to retrieve the value for key "children_recursive".
Please guide.

Answer 1

I figured out the issue.
Following code worked:
$obj = json_decode($containerItem);
Log::info(json_encode($obj->children_recursive));