At 07:59 PM 2/8/2002 +0900, Yasuo Ohgaki wrote:
>Andi Gutmans wrote:
>>At 06:55 PM 2/8/2002 +0900, Yasuo Ohgaki wrote:
>>
>>>Andi Gutmans wrote:
>>>
>>>>At 07:58 AM 2/7/2002 +0100, Stig S. Bakken wrote:
>>>>
>>>>>After careful consideration on the CS issue I must say I agree with John
>>>>>here. The _only_ case where I feel CS is a problem, is when dealing
>>>>>with other environments. But the price for changing this today is
>>>>>simply too high. It should have been done in PHP 3.0. We have other BC
>>>>>issues to soak our brains in.
>>>
>>>Why not in PHP5? PHP5 breaks BC badly with new name space
>>>support, anyway. Obviously, main concern for PHP5 is not
>>>compatibility, not like PHP4. Right?
>>
>>I still don't quite see why it breaks BC badly. It does not and no way
>>near the case sensitive change.
>>Don't give me hypothetical examples of breakage but if you were to check
>>how many scripts break because of name spaces and how many because of
>>case sensitivity you'd see they aren't in the same league.
>>Andi
>
>Name space BC problem is "bad", since script may misbehave
>without proper error message where to fix.
>It's a bad BC problem since it's harder to fix/notice.
>In some cases, it seems works well while it's not.
The question is how often does this breakage actually happen in real life
and not theoretically on the mailing list.
Andi
>Case sensitive name is also "bad" since it will break
>most scripts. However, it's reatively easy to fix/notice.
>
>Both of them are "bad" BC problem.
>
>For me, case sensitive name BC problem is better
>than name space BC problem, since there will be
>appropriate errors for BC problem.
>
>It may not the case for others, though...
>--
>Yasuo Ohgaki
>
>
>-------
>Script as follows will be executed w/o any error
>and gives totally wrong result.
>
>This is really "bad" BC problem, is't this?
>
><?php
>
>compute_rate() {
> // do standard rate calc here
> return $some_rate;
>}
>
>class A() {
> function get_rate($is_class_specific_rate) {
> if (%is_class_specific_rate) {
> // compute class specific rate
> return $this->compute_rate();
> }
> else {
> // use standard rate function
> return compute_rate();
> }
> }
>
> function compute_rate() {
> // do a little different rate calc here
> return $some_rate;
> }
>}
>
>?>
>
>
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