Need some help with str_replace and preg_match

Hi all,


I am very bad with string functions, so I was wondering if any of you have the following function.

Here is what I want it to do:

1. It takes a string, not very long, usually 32-64 characters.
2. It removes all characters, except [a-z] [0-9].
3. It replaces all white space between words with "-".

So if it takes a string like: "Ce credeti despre acest film???", it will return: "ce-credeti-despre-acest-film".


Help is appreciated

 

$string = preg_replace('/[^0-9a-z]/', '', str_replace(' ', '-', strtolower($string)));

PHP:

Should work?

 

Thanks!
It did not work properly, so I did some minor changes

$string = preg_replace('/[^\-0-9a-z]/', '', str_replace(' ', '-', strtolower($string)));

PHP:

P.S. i would however like it to check if there is just 1 space between words, and if it's more than just 1, trip it to 1 space.

 

Then you need to modify it a bit:

$string = preg_replace('/[^\-0-9a-z]/', '', preg_replace('/\s+/', '-', strtolower($string)));

PHP: