<?php

$texto = "codepad is an online compiler/interpreter, and 
a simple collaboration tool.Paste your code below, and 
codepad will run it and give you a short URL you can use
 to share it in chat or email.";


$resumo  = substr($texto, 0, 30);
$address = strtolower(trim(preg_replace('/[^a-zA-Z0-9]+/', '-', $resumo), '-'));

echo $address;

?>

codepad-is-an-online-compiler