Recursively cycle every path of an array

Question

I have the following(json) object:

$obj = json_decode(\'{
    \"Group1\": {
        \"Blue\": {
            \"Round\": [
                \"Harold\",
                 


        

Answer 1

Tested only on the given sample. But this should work if array levels are increased. I mainly use RecursiveIteratorIterator class functions

// Initialize RecursiveIteratorIterator
$iterator = new RecursiveIteratorIterator(new RecursiveArrayIterator($obj), RecursiveIteratorIterator::SELF_FIRST);
$paths = array(); // Paths storage
foreach ($iterator as $k => $v) { // Loop thru each iterator

    if (!$iterator->hasChildren()) { // Check if iterator hasChildren is false
        $innermost = $iterator->getSubIterator($iterator->getDepth()); // Get innermost child which is the array
        for ($p = array(), $i = 0, $z = $iterator->getDepth(); $i <= $z; $i++) { // Loop and push each path to the innermost array
            $p[] = $iterator->getSubIterator($i)->key();
        }
        array_pop($p); // Remove key
        $innermost = (array)$innermost; // Cast innermost to array
        $p[] = '(' . implode(', ', $innermost) . ')'; // push formatted innermost array to path
        $path = implode(' - ', $p); // implode the path
        $paths[] = $path; // store to list of paths array
    }

}

$paths = array_unique($paths); // remove exactly same paths

foreach ($paths as $value) {  // Loop and echo each path
    echo $value.'
';
}

Output:- https://eval.in/915070