Question

I ceated a function to convert a list of parent child to an object of class “city” :

   public static function createCity(array $config)
{
    $city= new City();

    $id=key($config);
    $label= $config[$id]['label'];

    $city->setId($id);
    $city->setLabel($label);

    $children = $config[$id]['childrens'];

    if(!empty($children)){
        foreach($children as $key_child => $child) {
            $children = array($key_child => $child);

            $city->addChild(self::createCity($children));

        }
    }
  return $city;
}

Now I would to creat a function to do the opposite => convert an object of type Class City to an array,so I do like that :

   public function getCityArray(City$rootCity)
{
        $result = array();

        $result['id'] = $rootCity->getId();
        $result['label']= $rootCity->getLabel();

    $children = $rootCity->getChildren();


    if ( !empty($children)) {
        foreach ($children as $key_child => $child) {

            $result['childrens'] = array($key_child => $child );

            $result[] = $this->getCityArray($child);
        }
    }

    return $result;

}

But it doesn’t work because when I do var_dump(‘$result’) so I have a list with no end and the loop does not stop?

Answer 1

Try this. Since I don’t know have the full code, not sure if it will work. The class variable $result will contain the results.

$result = array();
public function getCityArray(City $rootCity) {

  $result['id'] = $rootCity->getId();
  $result['label']= $rootCity->getLabel();
  $children = $rootCity->getChildren();

  if ( !empty($children)) {
    $result['childrens'] = $children;
    $this->result[] = $result;
    foreach ($children as $key_child => $child) {
      $this->getCityArray($child);
    }
  }

}