How I can make a clean url from text

Hi

This is how I need. Let's say that my title is

$title="Some text here with many characters,.?/!@#$%^&*()_+| bla bla123";

Code (markup):

I want a function that will return only : some-text-here-with-many-characters-bla-bla123

As you can see this will keep only the letters and numbers. I don't need the other characters.

I tried this but is not good

function cleanurl ( $str ) {
$str = urlencode($str);
return $str = str_replace( '+', '-', $str );
}

Code (markup):

This replace the spaces with "-" and encode the other characters

 

$title="Some text here with many characters,.?/!@#$%^&*()_+| bla bla123";
$result = strtolower(preg_replace('/[^a-z\d]+/i', '-', $title));

PHP:

 

Great .. works perfect .. Just a little bug

If I have the title $title="Some text here with many ” fdg" , How I can do widhout ” ?

 

http://www.php.net/manual/en/function.html-entity-decode.php

 

I tried this but with no results

 

obviously you would need to run html_entity_decode before the replacement of characters

$title="Some text here with many ©characters,.?/!@#$%^&*()_+| bla bla123";
$result = strtolower(preg_replace('/[^a-z\d]+/i', '-', html_entity_decode($title)));
echo $result;

PHP:

 

This works great as before ..

I take you to the limit .. If I have this

.. The <b>,</b> should not appear .. I think can be done with strip_tags