public function getKeys($recursive = TRUE) {
    $keys = new NodeCollection();
    $index = 0;
    foreach ($this->elements->getItems() as $element) {
      if ($element instanceof ArrayPairNode) {
        $keys->add($element->getKey());
        $value = $element->getValue();
      }
      else {
        $keys->add(Token::integer($index++));
        $value = $element;
      }

      if ($recursive && $value instanceof ArrayNode) {
        $keys->add($value->getKeys($recursive));
      }
    }
    return $keys;
  }
public function getKeys($recursive = TRUE) {
    $keys = new NodeCollection();
    $index = 0;
    foreach ($this->elements->getItems() as $element) {
      if ($element instanceof ArrayPairNode) {
        $keys->add($element->getKey());
        $value = $element->getValue();
      }
      else {
        $keys->add(Token::integer($index++));
        $value = $element;
      }

      if ($recursive && $value instanceof ArrayNode) {
        $keys->add($value->getKeys($recursive));
      }
    }
    return $keys;
  }
public function getKeys ( $ recursive = TRUE ) { $ keys = new NodeCollection ( ) ; $ index = 0 ; foreach ( $ this -> elements -> getItems ( ) as $ element ) { if ( $ element instanceof ArrayPairNode ) { $ keys -> add ( $ element -> getKey ( ) ) ; $ value = $ element -> getValue ( ) ; } else { $ keys -> add ( Token :: integer ( $ index ++ ) ) ; $ value = $ element ; } if ( $ recursive && $ value instanceof ArrayNode ) { $ keys -> add ( $ value -> getKeys ( $ recursive ) ) ; } } return $ keys ; }
Get the keys of the array.

@param boolean $recursive
(optional) TRUE to get keys of array elements that are also arrays.

@return NodeCollection
Get the keys of the array .