Need to pass currency code in geoplugin class as variable

Question

I am making a module displaying google map and retrieving the data in the marker info box from database. It is a hotel booking website. The currency stored in the database is Hotel's default currency while my goal is to show currency according to user's location.

I am using geoplugin class but it stops working when I try to pass variable or try to set variable in the class. I fetched the currency code from the database and tried to pass as variable to set it as base currency but it didn't work.

$curr = "USD"; // say "USD" is fetched from database

class geoPlugin {

  public $curr;
  //the geoPlugin server
  var $host = 'http://www.geoplugin.net/php.gp?ip={IP}&base_currency={CURRENCY}';


  //the default base currency
  var $currency = $curr;
  or $currency = $this->curr;

I also tried to set the variable inside the class

class geoPlugin {

  var $host = 'http://www.geoplugin.net/php.gp?ip={IP}&base_currency={CURRENCY}';
  public $curren;

  public function setVariableOne($curr) {
  $this->$curren = $curr;
}

//the default base currency
var $currency = $curren;
and in index file

$geoplugin = new geoPlugin();
$geoplugin->setVariableOne('USD');

Answer 1

First of all change

$this->$curren = $curr;

To

$this->curren = $curr;

And add default to property just after class opening tag (not in method)

public $curr = 'USD';

Regards

EDIT1 :

class geoPlugin {

    public $curren;

    public function setVariableOne($curr) 
    {
        $this->curren = $curr;
    }
}

thats work try if this code not work for you plz give us some hints by using errrors ; )

edit2:

do this and tell me if is working for you ( save it to new file ).

class geoPlugin {

    public $curren = 'USD';

    public function setVariableOne($curr) 
    {
        $this->curren = $curr;
    }

    public function getVariableOne()
    {
        return $this->curren;
    }
}

$geo = new geoPlugin();
var_dump( $geo->getVariableOne() ); // return 'USD' string
$geo->setsetVariableOne('EUR');
var_dump( $geo->getVariableOne() ); // return 'EUR' string

if this give you a blank page, please set error_reporting(-1) and then tell me the error code.

pastebin with geoplugin.class.php and it's working as it should be: http://pastebin.com/FWkYVsjg