Re: HTML Forms question...

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Great piece of advice Mike. Thanks. Far from obvious. I was stuck with this
problem since a few days.

Will that also apply to n-dimensional array, like:
document.form["system[]"][0][1] ?

Ignatius
____________________________________________
----- Original Message -----
From: "Ford, Mike [LSS]" <M.Ford@lmu.ac.uk>
To: "'Rich Gray'" <rich@f1central.net>; "NIPP, SCOTT V (SBCSI)"
<sn4265@sbc.com>; <php-db@lists.php.net>
Sent: Tuesday, November 19, 2002 7:35 PM
Subject: RE:  HTML Forms question...


> > -----Original Message-----
> > From: Rich Gray [mailto:rich@f1central.net]
> > Sent: 20 November 2002 01:13
> >
> > If you name the checkbox as name="system[]" then PHP will
> > automatically
> > create an array of the checkbox values which can be
> > subsequently accessed
> > via $_POST['system'][n] - be warned however that the '[]' can
> > screw up any
> > JavaScript code that refers to the checkbox object...
>
> G'rrrr -- not this old chestnut again!
>
> It only "screws up" your JavaScript if you don't write your JavaScript to
> allow for it.
>
> It's really very simple: *by* *definition* in JavaScript, the notation
>
>     a.b
>
> is *identical* to
>
>     a["b"]
>
> Thus, if you have a single checkbox named with name="system", then you can
> access it in either of these ways:
>
>     document.form.system
>     document.form["system"]
>
> By extension, if you have multiple checkboxes all named with
> name="system[]", you can refer to them as:
>
>     document.form["system[]"][0]
>     document.form["system[]"][1]
>     document.form["system[]"][2]
>
> etc...
>
> I know this works because I've been using it for years (even before I
> started programming with PHP!).
>
> Cheers!
>
> Mike
>
> ---------------------------------------------------------------------
> Mike Ford,  Electronic Information Services Adviser,
> Learning Support Services, Learning & Information Services,
> JG125, James Graham Building, Leeds Metropolitan University,
> Beckett Park, LEEDS,  LS6 3QS,  United Kingdom
> Email: m.ford@lmu.ac.uk
> Tel: +44 113 283 2600 extn 4730      Fax:  +44 113 283 3211
>
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