<?
$string = "blah name@domain.com blah";
$before = substr($string,0,strpos($string,"@"));
$after = strstr($string,"@");
$name = strrchr($before," ");
$domain = substr($after,0,strpos($after," "));
echo "$name$domain";
?>
tested.
http://www.elitefxgames.com/example.php