This is why I dislike PHP's set-ness model.

IWETHEY v. 0.3.0 | TODO

1,095 registered users | 0 active users | 0 LpH | Statistics
Login | Create New User

Welcome to IWETHEY!

Post #165,495

by static

7/21/04 11:15:33 PM

This is why I dislike PHP's set-ness model.

Had I written this, I would have been a lot more defensive and done if( isset(DevelMode) && DevelMode == 'yes' ) or similar.

Wade.

Is it enough to love
Is it enough to breathe
Somebody rip my heart out
And leave me here to bleed

Is it enough to die
Somebody save my life
I'd rather be Anything but Ordinary
Please

-- "Anything but Ordinary" by Avril Lavigne.

Post #165,497

by deSitter

7/21/04 11:29:23 PM

Re: This is why I dislike PHP's set-ness model.

Why does any sane idiom allow uninitialized objects to exist? What does this have to do with "set-ness"?

-drl

Post #165,499

by static

7/21/04 11:36:07 PM

PHP and "set" variables.

PHP has a simpler version of The Visual BASIC Variable Problem. In PHP, you can query the symbol table to see if a variable is defined or not. Whilst this seems like a good idea, in practice it's not. It is much easier if the language does not distinguish between a variable not in the symbol table versus containing a special value, usually null. PHP unfortunately evaluates expressions involving non-existent variables uniquely compared to a particular value; this the constant checking that variables "exist" or are "set". When I programmed with PHP, it often drove me up the wall.

(Visual BASIC lets variables have several states other than simply existing with a value. These include Empty and Nothing as well as actually not existing.)

Wade.

Is it enough to love
Is it enough to breathe
Somebody rip my heart out
And leave me here to bleed

Is it enough to die
Somebody save my life
I'd rather be Anything but Ordinary
Please

-- "Anything but Ordinary" by Avril Lavigne.

Post #165,501

by deSitter

7/21/04 11:42:08 PM

gawd

Some cutesy idiot's idea of "depth".

-drl

Post #165,500

by static

7/21/04 11:37:29 PM

7/21/04 11:37:41 PM

(Dupe.)

Is it enough to love
Is it enough to breathe
Somebody rip my heart out
And leave me here to bleed

Is it enough to die
Somebody save my life
I'd rather be Anything but Ordinary
Please

-- "Anything but Ordinary" by Avril Lavigne.

Edited by static July 21, 2004, 11:37:41 PM EDT

Expand All History

[ siiiiiiiiiiiiiiiiiiiiiiigggggghhhhhhhhhhhhhh ] - (drewk) - (17) - July 21, 2004, 09:32:52 PM EDT

Does PHP have the equivalent of 'use strict;'? - (ben_tilly) - (8) - July 21, 2004, 09:54:30 PM EDT

or Option Explicit for the VB world :-) - (ChrisR) - July 21, 2004, 10:29:47 PM EDT

Trying to figure out how I can use this - (drewk) - (6) - July 22, 2004, 12:44:25 AM EDT

His solution is more general than that - (ben_tilly) - (5) - July 22, 2004, 01:10:39 AM EDT

Finally had time to reply to this - (drewk) - (4) - July 27, 2004, 01:58:41 AM EDT

Re: Finally had time to reply to this - (deSitter) - July 27, 2004, 02:04:24 AM EDT

That's backwards :-( - (ben_tilly) - (2) - July 27, 2004, 08:10:11 PM EDT

Gosh, really? - (drewk) - (1) - July 28, 2004, 09:32:26 AM EDT

Gah. I wish that was unusual. :-( -NT - (ben_tilly) - July 28, 2004, 11:35:00 AM EDT

Using PHP since 2001, I see... :( -NT - (FuManChu) - July 21, 2004, 09:55:00 PM EDT

Yup, many compilers just leave . . - (Andrew Grygus) - July 21, 2004, 10:02:49 PM EDT

This is why I dislike PHP's set-ness model. - (static) - (4) - July 21, 2004, 11:15:33 PM EDT

Re: This is why I dislike PHP's set-ness model. - (deSitter) - (3) - July 21, 2004, 11:29:23 PM EDT

PHP and "set" variables. - (static) - (1) - July 21, 2004, 11:36:07 PM EDT

gawd - (deSitter) - July 21, 2004, 11:42:08 PM EDT

(Dupe.) -NT - (static) - July 21, 2004, 11:37:41 PM EDT

Just off a 42-minute call, 3 a.m. local time, must sleep - (drewk) - July 22, 2004, 03:07:30 AM EDT

iwethey.org

You keep using that word, but I do not think that it means what you think it does.
61 ms