Remove all characters except letters and numbers from a string

null@example.com (Casper) — Sun, 15 Jun 2008 01:03:59 +0000

Description
If you want to strip a string of all symbols and characters other than alphanumeric letters and numbers then use this. It will take a string and erase / delete any non-alphanumeric characters, and then output a clean version without the unwanted characters.

The code
[code]

$string = "This is some text and numbers 12345 and symbols !

Code The World — Remove all characters except letters and numbers from a string

Remove all characters except letters and numbers from a string