Question

Possible Duplicate:
URL Friendly Username in PHP?

Is there a way to make strings “URL safe” which means replacing whitespaces with hyphens, removing any punctuation and change all capital letters to lowercase?

For example:

"This is a STRING" -› "this-is-a-string"

or

"Hello World!" –› "hello-world"

Answer 1

You can use preg_replace to replace change those characters.

$safe = preg_replace('/^-+|-+$/', '', strtolower(preg_replace('/[^a-zA-Z0-9]+/', '-', $string)));