Re: FLASH: Flash4 and forms

[Jason Nugent]

Nigel,


Good points, all of them.  Two others, that may or may not be important -


GET limits the amount of info you can send back to the server, since all

info is appended as part of the Query String of the URL.  The length is

dependant on a buffer size, but I believe (correct me if Im wrong) that its

1024 bytes, or a little more than a thousand characters.  Most urls don't

come close to this, but if you are submitting large amounts of data its

better to use POST since that way you don't have to worry about the cut-off.


Outside of Flash (which lets you specify either GET or POST), you can create

urls that pass information to CGI scripts only if you use GET.  This lets

you bookmark things like "canned" searches from CGI scripts and so on.

Its not possible to call a CGI script that uses POST normally in a url since

there isn't any real way to pass the information to the script after the

headers are sent (which is how POST works).


Jason


Nigel Randsley-Pena wrote:


> Brian,

>

> These examples are based on GET. I have noticed that most posters don't

> know when to use GET or POST so as an added bonus some tips.

> In pratical terms GET and POST are nearly identical. So when do we use

> one or the other.

> Well first an important distinction results returned from GET may be

> cached while results returned from POST are not cached.

> Simple rule to decide when to use GET and when to use POST.

> When you send information back to the server this information may or may

> not change the server's state. If the information you are sending back

> will NOT change the servers state use GET if i will change the server's

> state use POST.

> So if the information you send back will go into a database for example

> or will be written to a file on the server, then we have a change of

> state and POST should be used other cases GET is OK.

>

> Nigel

>

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