Sam Liddicott writes:
>
>
> > -----Original Message-----
> > From: Lars Torben Wilson [mailto:[EMAIL PROTECTED]]
> > Sent: Friday, February 02, 2001 09:49
> > To: Christopher Kings-Lynne
> > Cc: Bug Database
> > Subject: Re: [PHP-DEV] RE: PHP 4.0 Bug #9064 Updated: Functions inside
> > functions cause errors if the outer function is called twice.
> >
> >
> >
> > What does that buy you that this doesn't?
> >
> > function test2() {
> > echo "hi";
> > }
> >
> > function test() {
> > test2();
> > }
> >
> > ...other than a new scoping rule?
>
> Don't underestimate scoping, it means you can have multiple test2()'s [lest
> call it "sort" - common to use different sort routines in different
> circumstances]
>
> a) stops namespace polution
> b) keeps access private
> while
> c) retaining modularisation.
>
> Sam
I didn't underestimate scoping per se (or at least I didn't intend
to). However, this particular manifestation isn't really one that I
would consider highly indispensable. :)
For the style of language that it is, I think PHP's current scoping
really isn't all that deficient, although there are certainly times
when a more complete namespace/module/scoping scheme would come in
handy.
Torben
> >
> >
> > Christopher Kings-Lynne writes:
> > > Shouldn't you at least be able to register the "nested
> > function" as 'static?
> > >
> > > This causes syntax errors in 4.0.4pl1.
> > >
> > > ie:
> > >
> > > <?php
> > >
> > > function test() {
> > > static function test2() {
> > > echo "hi";
> > > }
> > >
> > > test2();
> > > }
> > >
> > > test();
> > > test();
> > > test();
> > >
> > > ?>
> > >
> > > > -----Original Message-----
> > > > From: Bug Database [mailto:[EMAIL PROTECTED]]
> > > > Sent: Friday, February 02, 2001 5:14 PM
> > > > To: [EMAIL PROTECTED]
> > > > Subject: PHP 4.0 Bug #9064 Updated: Functions inside
> > functions cause
> > > > errors if the outer function is called twice.
> > > >
> > > >
> > > > ID: 9064
> > > > Updated by: hholzgra
> > > > Reported By: [EMAIL PROTECTED]
> > > > Old-Status: Open
> > > > Status: Closed
> > > > Bug Type: Scripting Engine problem
> > > > Assigned To:
> > > > Comments:
> > > >
> > > > php has no "nested function" feature like you'll find in PASCAL
> > > > or in gcc if you enable the feature
> > > >
> > > > what happens here is that test2 is registered on execution of
> > > > test in the global namespace, and when you call test a second time
> > > > it cannot register test2 again
> > > >
> > > > (the engine shouldn't accept nested functions at all i think)
> > > >
> > > > Previous Comments:
> > > > ------------------------------------------------------------------
> > > > ---------
> > > >
> > > > [2001-02-01 22:18:32] [EMAIL PROTECTED]
> > > > This script fails with:
> > > >
> > > > <b>Fatal error</b>: Cannot redeclare test2() in <b>-</b> on line
> > > > <b>4</b><br>
> > > >
> > > > <?php
> > > >
> > > > function test() {
> > > > function test2() {
> > > > echo "hi";
> > > > }
> > > >
> > > > test2();
> > > > }
> > > >
> > > > test();
> > > > test();
> > > > test();
> > > >
> > > > ?>
> > > >
> > > > ------------------------------------------------------------------
> > > > ---------
> > > >
> > > >
> > > > Full Bug description available at: http://bugs.php.net/?id=9064
> > > >
> > >
> > >
> > > --
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> >
> > --
> > +----------------------------------------------------------------+
> > |Torben Wilson <[EMAIL PROTECTED]> Adcore Finland|
> > |http://www.coastnet.com/~torben http://www.adcore.com|
> > |Ph: 1.604.709.0506 [EMAIL PROTECTED]|
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> >
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|Torben Wilson <[EMAIL PROTECTED]> Adcore Finland|
|http://www.coastnet.com/~torben http://www.adcore.com|
|Ph: 1.604.709.0506 [EMAIL PROTECTED]|
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