[Resolved] Remove all non-alphanumeric characters

[coders4hire]

I have a form for entering a code, first name, and last name.

I would like to modify the submitted string to remove any characters that are non-alphanumeric. In other words, only include characters 0-9, A-Z, and a-z. No spaces, dashes... anything.

Thanks!
Doug

[drew010]

$cleaned = preg_replace("/[^\w\d]/", "", $_POST['fieldname']);

[coders4hire]

Thanks! I didn't see this function in any of my PHP books... will look it up at PHP.net today.

Doug