using array_walk_recursive() for stdClass objects

Question

I have looked through a few answers on here but that don't seem to utilise this method?

I have an array of items, and the items are objects. The object can have a key which is 'children' and 'children' is an array of objects etc.

Is there a way to achieve this?

Example:

    Array
    (
        [1] => stdClass Object
            (
                [id] => 1
                [name] => Steve King
                [image] => upload/shop/fe7a66254e4249af2b0093efca75a914.jpg
                [parent] => 0
                [children] => Array
                    (
                    )

            )

        [2] => stdClass Object
            (
                [id] => 2
                [name] => Eden Hall
                [image] => upload/shop/064f60a98deba612e437ac549f1dc05d.jpg
                [parent] => 0
                [children] =>Array
                    (
                        [1] => stdClass Object
                            (
                              [id] => 1
                              [name] => Steve King
                              [image] => upload/shop/fe7a66254e4249af2b0093efca75a914.jpg
                              [parent] => 0
                              [children] => Array
                                  (
                                  )

                   )
            )
        [3] => stdClass Object
            (
                [id] => 3
                [name] => Paula Johnson
                [image] => upload/shop/1492a323090afbad07c35cf93fe6bdda.jpg
                [parent] => 0
                [children] => Array
                    (
                    )

            )

        [4] => stdClass Object
            (
                [id] => 4
                [name] => Ethan Watson
                [image] => upload/shop/677c720333af33bc58d0684d79918e03.jpg
                [parent] => 0
                [children] => Array
                    (
                    )

            )

        [5] => stdClass Object
            (
                [id] => 5
                [name] => Abigail Adams
                [image] => upload/shop/da1734277322fc3b2e84a9ddbcc2e2f1.jpg
                [parent] => 0
                [children] => Array
                    (
                    )

            )

Sahil Gulati · Accepted Answer · 2017-04-18 14:36:36Z

6

Assign an array of objects under $array.

Solution 1: json_encode an array of objects to make it a json and then converting an json into associative array.

$result=json_decode(json_encode($array),true);
array_walk_recursive($result, function($value,$key){
    print_r($value);
    print_r($key);
});

Solution 2: Iterating over array and type casting each object as array.

array_walk($array,function(&$value,$key){
    $value=(array) $value;
});
array_walk_recursive($array, function($value,$key){
    print_r($value);
    print_r($key);
});

edited Apr 18, 2017 at 14:36

answered Apr 18, 2017 at 14:29

Sahil Gulati

15.2k4 gold badges28 silver badges43 bronze badges

Sign up to request clarification or add additional context in comments.

6 Comments

Ryan Hipkiss Over a year ago

Thank you. I guess it's not possible to loop through while keeping them as objects then?

Sahil Gulati Over a year ago

@RyanHipkiss array_walk_recursive will work for only arrays not objects.

Ryan Hipkiss Over a year ago

Thanks, this solution does work. I was hoping that because the 'children' property was an array that it would work. No worries though.

Sahil Gulati Over a year ago

welcome @RyanHipkiss thanks for accepting ... If you have some nested array which contains nested objects as well then use first solution.. It will for for that as well..

Amir Khadem Over a year ago

hi @SahilGulati solution 1 worked for me but now i can't see the hierarchy to my values, i just see key and the value in an unorganized way, anyway I can organize this?

|

Stanislav Poslavsky · Accepted Answer · 2017-04-20 21:15:29Z

6

You always can implement a custom recursive iterator for certain data structure. It can be a more flexible solution. For example:

class MyIterator extends \IteratorIterator implements 
\RecursiveIterator
{
    public function hasChildren()
    {
        $current = $this->current();

        if (is_array($current) and $this->key() === 'children') {
            return true;
        }

        return is_object($current);
    }

    public function getChildren()
    {
        /* $current is array (for key 'children') or \stdClass obj*/

        $current = $this->current();

        return new MyIterator(new \ArrayObject($current));
    }
}

$rii = new \RecursiveIteratorIterator(new MyIterator(new 
\ArrayObject($data)));

foreach ($rii as $key => $value) {
    print_r($key);
    print_r($value);
}

edited Apr 20, 2017 at 21:15

Stanislav Poslavsky

2,4382 gold badges25 silver badges37 bronze badges

answered Apr 18, 2017 at 16:26

Grigoriy I

914 bronze badges

Collectives™ on Stack Overflow

using array_walk_recursive() for stdClass objects

2 Answers 2

6 Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

6 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related