Find children parents

find-parents-list.js

const datas = {
    'children': [
        {
            'name': '1',
            'children': [
                {'name': '1.1'},
                {'name': '1.2'},
                {
                    'name': '1.3',
                    'children': [
                        {'name': '1.3.1'},
                        {'name': '1.3.2'}
                    ]
                },
                {'name': '1.4'}
            ]
        },
        {
            'name': '2',
            'children': [
                {'name': '2.1'}
            ]
        }
    ]
};
function findParents(node, searchForName) {
  if(node.name === searchForName) {
    return []
  }
  if(Array.isArray(node.children)) {
    for(const treeNode of node.children) {
      const childResult = findParents(treeNode, searchForName)
      if(Array.isArray(childResult)) {
        return [ treeNode.name ].concat( childResult );
      }
    }
  }
}
console.log(findParents(datas, '1.3.2'));
/*
[
  "1",
  "1.3",
  "1.3.2"
]
*/

find-parents-list.php

<?php
$datas = [
    'children' => [
        [
            'name' => '1',
            'children' => [
                ['name' => '1.1'],
                ['name' => '1.2'],
                [
                    'name' => '1.3',
                    'children' => [
                        ['name' => '1.3.1'],
                        ['name' => '1.3.2'],
                    ],
                ],
                ['name' => '1.4'],
            ],
        ],
        [
            'name' => '2',
            'children' => [
                ['name' => '2.1'],
            ],
        ],
    ],
];
function findParents($node, $searchForName) {
  if(isset($node['name']) && $node['name'] === $searchForName) {
    return [];
  }
  if(isset($node['children']) && is_array($node['children'])) {
    foreach ($node['children'] as $treeNode ) {
      $childResult = findParents($treeNode, $searchForName);
      if(is_array($childResult)) {
        array_push($childResult, $treeNode['name']);
        return $childResult;
      }
    }
  }
}
/*
Array
(
    [0] => 1.3.1
    [1] => 1.3
    [2] => 1
)
*/

find-parents-tree.js

const datas = {
    'children': [
        {
            'name': '1',
            'children': [
                {'name': '1.1'},
                {'name': '1.2'},
                {
                    'name': '1.3',
                    'children': [
                        {'name': '1.3.1'},
                        {'name': '1.3.2'}
                    ]
                },
                {'name': '1.4'}
            ]
        },
        {
            'name': '2',
            'children': [
                {'name': '2.1'}
            ]
        }
    ]
};
function findParentsTree({ children = [], ...object }, name) {
  let result;
  if (object.name === name) {
    return object;
  }
  return children.some(o => {
    return result = findParentsTree(o, name)
  }) && Object.assign({}, object, { children: [result] });
}

console.log(findParentsTree(datas, '1.3.2'));
/*
{
  "children": [
    {
      "name": "1",
      "children": [
        {
          "name": "1.3",
          "children": [
            {
              "name": "1.3.2"
            }
          ]
        }
      ]
    }
  ]
}
*/

I needed current route and its hierarchical parent when I was working on this in VueJS.