Problem with array

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As with my previous post the problem is the pieces of the array can vary 
from 1 to 4 items. So pieces 3 and 4 are often undefined giving the 
'undefined index' notice. All I really want to do is display the array 
pieces if they EXIST. But as they are inside a echo statement so I can't 
even to a for loop...can I?


Any ideas?

R.


if ($quantity == 0){

    }
   else {

 $pieces = explode(" ", $quantity);


   $formatted_price = sprintf('%0.2f', $pricecode);
  echo "<table width=\"240\" border=\"0\" cellpadding=\"2\" 
cellspacing=\"5\"><tr><td valign=\"top\" align=\"right\" 
width=\"40\">$pieces[0]</td><td align=\"left\" width=\"60\"></td><td 
align=\"left\" width=\"200\">$pieces[1]  $pieces[2] $pieces[3] 
$pieces[4]</td><td valign=\"top\" align=\"left\" 
width=\"80\">$formatted_price</td></tr></table>";





   }
   }

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