creating a function in a widget

So I think the function has to go inside the “widget” function of the widget class, which is what I have done here.

function widget($args, $instance)
  {

 function  getstockstats	($stocksymbol)
 {
				include_once('class.yahoostock.php');
				$objYahooStock = new YahooStock;
				$objYahooStock->addFormat("snl1d1t1cvc1p2");
				$objYahooStock->addStock('IWM');

		 $i = 0;
			foreach( $objYahooStock->getQuotes() as $code => $stock) :
			$i++;

		echo '<div class=/"item';
		echo ($stock[7] > 0) ? 'green' : 'red';
		echo '/"> ';

		echo '<span style=/"color:black; font-weight:bold;/">';
		 echo $stock[0];
		 echo '</span>';

		echo '<span style=/"color:black;/">';
		echo $stock[2];
		echo '</span>';

		echo '<strong>';
		 echo $stock[7];
		 echo '</strong';

				 echo str_replace('"', '', $stock[8]);
			echo '</div>';
		endforeach;
return $stock;
 }     

    extract($args, EXTR_SKIP);

    echo $before_widget;
    $title = empty($instance['title']) ? ' ' : apply_filters('widget_title', $instance['title']);

    if (!empty($title))
      echo $before_title . $title . $after_title;

// WIDGET CODICE VA QUA

echo getstockstats("aapl");

 // DOPO WIDGET CODICE
    echo $after_widget;
  }

I want to supply the getstockstats function with a ticker, and have it spit out an array containing information about the ticker.

Currently, it doesn’t do anything, I’m not sure what I’m doing wrong here, does anyone have any tips?