I am having a parse error here help!

PHP
1 
'example2.php?subject='.urlencode($row['id'])'&id='.intval($id);

what is not being parsed correctly? It looks like

‘&id=’.intval($id)
is not well structure.

help please

2

this structure is all right, but right before it one operator is missed.

3 
'example2.php?subject='.urlencode($row['id']).'&id='.intval($id);