On Tuesday 10 June 2008, Leurent Francois wrote:
> I was asking myself if there was a good reason this syntax not to work
>
> class string_extented{
> function __construct($str){
> $this->contents=$str;
> }
> function __toString(){
> return $this->contents;
> }
>
> }
>
> //that's working fine
> $test= new string_extended("this is my anonymous string");
> echo $test;
>
>
> /that's not working, but should'nt it be the case ?
> $test = (string_extended) "This is my anonymous string";
> echo $test;
>
> I'll find this very usefull :x, it's just a syntax ehancement nope ?
Casting only works between "easily convertable" types. A string does not
easily convert to a classic object. One could ask if it would just pass to
the constructor, but it doesn't. I don't know if there's a technical reason
for that or if just no one implemented it, but the short answer is "The
language doesn't do that."
(What may be confusing you is __toString(), which only works for *reading* if
you *already have an object* and then use it in a string context. You don't
already have an object and are trying to *write*, so the __toString() does
nothing.)
--
Larry Garfield AIM: LOLG42
larry@xxxxxxxxxxxxxxxx ICQ: 6817012
"If nature has made any one thing less susceptible than all others of
exclusive property, it is the action of the thinking power called an idea,
which an individual may exclusively possess as long as he keeps it to
himself; but the moment it is divulged, it forces itself into the possession
of every one, and the receiver cannot dispossess himself of it." -- Thomas
Jefferson
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