Randy questions

Randy answers

• What are the uses for Cross Join?
• Creating your own Tinyurl style uid
• Statistical tools for programmers [closed]
• What puts less load on a PHP server: SimpleXML or json_decode?
• How to remove the background from a fingerprint image?
• Detecting jQuery UI autocomplete
• Yahoo Username Regex
• Ping fails but http link works
• PHP templates - with PHP [closed]
• How to check if directory exists in %PATH%?