Coding Cookbook/URL Encode

Encode special characters in a string, so that it can be used in an URL

VBScript solution edit

function URLEncode (sInput)
  if IsNull(sInput) then
    URLEncode = ""
    exit function
    end if
  URLEncode = sInput
  URLEncode = Replace(URLEncode, chr(0), "")
  URLEncode = Replace(URLEncode, "%", "%25")
  URLEncode = Replace(URLEncode, " ", "%20")
  URLEncode = Replace(URLEncode, """", "%22")
  URLEncode = Replace(URLEncode, "&", "%26")
  URLEncode = Replace(URLEncode, "'", "%27")
  URLEncode = Replace(URLEncode, "/", "%2F")
  URLEncode = Replace(URLEncode, "?", "%3F")
  URLEncode = Replace(URLEncode, "\", "%5C")
end function

function URLEncode (sInput)
  Escape(sInput)
end function