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Posted by Jerry Stuckle on 09/28/07 11:44
kenneth02394832 wrote:
> On Sep 27, 11:59 pm, Lars Eighner <use...@larseighner.com> wrote:
>> In our last episode, <1190961700.418756.41...@50g2000hsm.googlegroups.com>,
>> the lovely and talented Summercool broadcast on comp.lang.php:
>>
>>> so many places, including the book PHP in a Nutshell, p. 80, it says:
>>> $a =& $b # set $a to reference $b
>>> if $a reference $b, then while you can say $b =1, you can't really
>>> say $a = 1. you need to say *($a) = 1 as in C or C++. Referencing
>>> must be coupled with dereferencing, and PHP is not doing the
>>> dereferencing, so why is it call referencing in the first place?
>>> (don't tell me PHP automatically dereference... as it will be really
>>> weird).
>>> and i think in the PHP group, people say "reference" to mean "alias".
>> That is exactly what the manual says in Chapter 21. References Explained.
>> Instead of guessing, why not RTFM?
>
>
> does the manual say why there are two different types of references
> and
> they behaving differently and they just call it the same name?
>
> in all the languages i know, when you use
>
> a = 0
> b = 1
>
> that will break any relationship for variable a and b
>
Not if a is a reference to b (or vice versa). True in all languages
which support references.
> no, not for PHP. if there was ever a line
>
> $a =& $b
>
> some where before, then they are alias forever. No other language i
> know does that, and then calling it reference to confuse with the
> other type of reference.
>
>
C++, Java... languages which support references.
--
==================
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Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
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