Re: undefined variable

On 20 Feb 2014, at 12:25, Tim Streater <tim@clothears.org.uk> wrote: > and then later I do: > > $str = "fcc: " . $PTR_fcc; > > Now, upon examination it appears that I have an instance where $str ends up as: > > fcc: undefined > > > My question is, under what conditions can a variable be set by the PHP system to the string > "undefined"? Would this require that my ajax call in the browser would have to have had > something explicit like: > > ... &PTR_fcc=undefined … Not explicit as such, but that is what’s happening. Javascript will use the string "undefined" whenever an undefined variable is concatenated on to a string. -Stuart -- Stuart Dallas 3ft9 Ltd http://3ft9.com/