public static function generate_query_string($params, &$pairs = array(),
    $namespace = null) {

    if (is_array($params)) {

      foreach ($params as $k => $v) {

        if (is_int($k)) {
          GoCardless_Utils::generate_query_string($v, $pairs, $namespace .
            '[]');
        } else {
          GoCardless_Utils::generate_query_string($v, $pairs,
            $namespace !== null ? $namespace . "[$k]" : $k);
        }

      }

      if ($namespace !== null) {
        return $pairs;
      }

      if (empty($pairs)) {
        return '';
      }

      usort($pairs, array(__CLASS__, 'sortPairs'));

      $strs = array();
      foreach ($pairs as $pair) {
        $strs[] = $pair[0] . '=' . $pair[1];
      }

      return implode('&', $strs);

    } else {

      $pairs[] = array(rawurlencode($namespace), rawurlencode($params));

    }

  }
public static function generate_query_string($params, &$pairs = array(),
    $namespace = null) {

    if (is_array($params)) {

      foreach ($params as $k => $v) {

        if (is_int($k)) {
          GoCardless_Utils::generate_query_string($v, $pairs, $namespace .
            '[]');
        } else {
          GoCardless_Utils::generate_query_string($v, $pairs,
            $namespace !== null ? $namespace . "[$k]" : $k);
        }

      }

      if ($namespace !== null) {
        return $pairs;
      }

      if (empty($pairs)) {
        return '';
      }

      usort($pairs, array(__CLASS__, 'sortPairs'));

      $strs = array();
      foreach ($pairs as $pair) {
        $strs[] = $pair[0] . '=' . $pair[1];
      }

      return implode('&', $strs);

    } else {

      $pairs[] = array(rawurlencode($namespace), rawurlencode($params));

    }

  }
public static function generate_query_string ( $ params , & $ pairs = array ( ) , $ namespace = null ) { if ( is_array ( $ params ) ) { foreach ( $ params as $ k => $ v ) { if ( is_int ( $ k ) ) { GoCardless_Utils :: generate_query_string ( $ v , $ pairs , $ namespace . '[]' ) ; } else { GoCardless_Utils :: generate_query_string ( $ v , $ pairs , $ namespace !== null ? $ namespace . "[$k]" : $ k ) ; } } if ( $ namespace !== null ) { return $ pairs ; } if ( empty ( $ pairs ) ) { return '' ; } usort ( $ pairs , array ( __CLASS__ , 'sortPairs' ) ) ; $ strs = array ( ) ; foreach ( $ pairs as $ pair ) { $ strs [ ] = $ pair [ 0 ] . '=' . $ pair [ 1 ] ; } return implode ( '&' , $ strs ) ; } else { $ pairs [ ] = array ( rawurlencode ( $ namespace ) , rawurlencode ( $ params ) ) ; } }
Generates, encodes, re-orders variables for the query string.

@param array $params The specific parameters for this payment
@param array $pairs Pairs
@param string $namespace The namespace

@return string An encoded string of parameters
Generates encodes re - orders variables for the query string .