使用PHP的层次结构树json？

Question

I have json like this. i have try this Convert PHP array to JSON tree but always fail when i create.

{
  "name": "Level 7",
  "value": "4.5",
  "parents": [
    {
      "name": "Level 5",
      "value": "Gery",
      "parents": [
        {
          "name": "Level 2",
          "value": "Robert"
        },
        {
          "name": "Level 1",
          "value": "Rio"
        }
      ]
    },
    {
      "name": "Level 6",
      "value": "GEO",
      "parents": [
        {
          "name": "Level 3",
          "value": "Lion"
        },
        {
          "name": "Level 4",
          "value": "Pery"
        }
      ]
    }
  ]
}

How to create json hierachy from php?

$data = array(
    array('name' => 'Level 1', 'value' => 'Rio', 'parents' => 'Level 7/Level 5'),
    array('name' => 'Level 2', 'value' => 'Robet', 'parents' => 'Level 7/Level 5'),
    array('name' => 'Level 3', 'value' => 'Lion', 'parents' => 'Level 7/Level 6'),
    array('name' => 'Level 4', 'value' => 'Pery', 'parents' => 'Level 7/Level 6'),
    array('name' => 'Level 5', 'value' => 'Gery', 'parents' => 'Level 7'),
    array('name' => 'Level 6', 'value' => 'GEO', 'parents' => 'Level 7'),
       array('name' => 'Level 7', 'value' => '4.5', 'parents' => 'none'),
);

Answer 1

If the json is stored as a string, you can convert it to a PHP object with json_decode .

$object = json_decode($json);

If it's a PHP object, you can convert it to a string with json_encode .

$string = json_decode($object);