Re: [PHP] Variables with - in their name

[tamouse mailing lists]

On Sun, Nov 18, 2012 at 5:12 AM, Ashley Sheridan
 wrote:
> On Sun, 2012-11-18 at 01:37 -0700, Nathan Nobbe wrote:
>
>> On Sat, Nov 17, 2012 at 11:09 PM, Ron Piggott <
>> ron.pigg...@actsministries.org> wrote:
>>
>> > I have made the following variable in a form:  (I am referring the
>> >  )
>> >
>> > > >
>> > $row['promo_code_prefix']  = 42;
>> > $row['promo_code_suffix'] = 2;
>> >
>> > echo "> > $row['promo_code_suffix'] . "\" style=\"text-align: center;\">\r\n";
>> >
>> > ?>
>> >
>> > It could be wrote:
>> >
>> > > >
>> > echo  $distributor-42-2;
>> >
>> > ?>
>> >
>> > Only PHP is treating the hyphen as a minus sign --- which in turn is
>> > causing a syntax error.
>> >
>> > How do I retrieve the value of this variable and over come the “minus”
>> > sign that is really a hyphen?
>> >
>>
>> php > ${distributor-42-2} = 5;
>> php > echo ${distributor-42-2};
>> 5
>>
>> I think that's it.
>>
>> -nathan
>
>
> I'd just try and avoid the hyphens in the variable names in the first
> place if you can. Can you guarantee that everyone working on this system
> will know when to encapsulate the variables in braces?
>
> Thanks,
> Ash
> http://www.ashleysheridan.co.uk
>
>

Agreed.

>From http://www.php.net/manual/en/language.variables.basics.php :

"Variable names follow the same rules as other labels in PHP. A
valid variable name starts with a letter or underscore, followed
by any number of letters, numbers, or underscores."

The ${var} circumvents this (somewhat), but in the case above, it
would be better to avoid the dashes and use underscores.

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Re: [PHP] Variables with - in their name

[Ashley Sheridan]

On Sun, 2012-11-18 at 01:37 -0700, Nathan Nobbe wrote:

> On Sat, Nov 17, 2012 at 11:09 PM, Ron Piggott <
> ron.pigg...@actsministries.org> wrote:
> 
> > I have made the following variable in a form:  (I am referring the
> >  )
> >
> >  >
> > $row['promo_code_prefix']  = 42;
> > $row['promo_code_suffix'] = 2;
> >
> > echo " > $row['promo_code_suffix'] . "\" style=\"text-align: center;\">\r\n";
> >
> > ?>
> >
> > It could be wrote:
> >
> >  >
> > echo  $distributor-42-2;
> >
> > ?>
> >
> > Only PHP is treating the hyphen as a minus sign --- which in turn is
> > causing a syntax error.
> >
> > How do I retrieve the value of this variable and over come the “minus”
> > sign that is really a hyphen?
> >
> 
> php > ${distributor-42-2} = 5;
> php > echo ${distributor-42-2};
> 5
> 
> I think that's it.
> 
> -nathan


I'd just try and avoid the hyphens in the variable names in the first
place if you can. Can you guarantee that everyone working on this system
will know when to encapsulate the variables in braces?

Thanks,
Ash
http://www.ashleysheridan.co.uk

Re: [PHP] Variables with - in their name

[Nathan Nobbe]

On Sat, Nov 17, 2012 at 11:09 PM, Ron Piggott <
ron.pigg...@actsministries.org> wrote:

> I have made the following variable in a form:  (I am referring the
>  )
>
> 
> $row['promo_code_prefix']  = 42;
> $row['promo_code_suffix'] = 2;
>
> echo " $row['promo_code_suffix'] . "\" style=\"text-align: center;\">\r\n";
>
> ?>
>
> It could be wrote:
>
> 
> echo  $distributor-42-2;
>
> ?>
>
> Only PHP is treating the hyphen as a minus sign --- which in turn is
> causing a syntax error.
>
> How do I retrieve the value of this variable and over come the “minus”
> sign that is really a hyphen?
>

php > ${distributor-42-2} = 5;
php > echo ${distributor-42-2};
5

I think that's it.

-nathan