Snippet 2: Email Sending Snippet for PHP with email validator

function shortenurl($url){
 $length = strlen($url);
 if($length > 45){
  $length = $length - 30;
  $first = substr($url, 0, -$length);
  $last = substr($url, -15);
  $newurl = $first."[ ... ]".$last;
  return $newurl;
 }else{
  return $url;
 }
}

$longurl = "http://www.google.com/search?hl=en&client=firefox-a&channel=s&rls=org.mozilla%3Aen-US%3Aofficial&hs=BCR&q=metacafe&btnG=Search";
$shorturl = shortenurl($longurl);
echo"$shorturl";
?>