Search for values in nested array

Question

I have an array as follows

array(2) {
  [\"operator\"] => array(2) {
    [\"qty\"] => int(2)
    [\"id\"] => int(251)
  }
  [\"accessory209\"] =>         


        

Answer 1

I used a static method because i needed it in a class, but if you want you can use it as a simple function.

/**
 * Given an array like this
 * array(
 *   'id' => "first",
 *   'title' => "First Toolbar",
 *   'class' => "col-md-12",
 *   'items' => array(
 *       array(
 *           'tipo' => "clientLink",
 *           'id' => "clientLinkInsert"
 *       )
 *   )
 * )
 *
 * and array search like this
 * array("items", 0, "id")
 * 
 * Find the path described by the array search, in the original array
 *
 * @param array $array source array
 * @param array $search the path to the item es. ["items", 0, "tipo"]
 * @param null|mixed $defaultIfNotFound the default value if the value is not found
 *
 * @return mixed
 */
public static function getNestedKey($array, $search, $defaultIfNotFound = null)
{
    if( count($search) == 0 ) return $defaultIfNotFound;
    else{
        $firstElementSearch = self::array_kshift($search);

        if (array_key_exists($firstElementSearch, $array)) {
            if( count($search) == 0 )
                return $array[$firstElementSearch];
            else
                return self::getNestedKey($array[$firstElementSearch], $search, $defaultIfNotFound);
        }else{
            return $defaultIfNotFound;
        }
    }
}