Hello Dan,
Friday, October 10, 2003, 8:36:48 PM, you wrote:
> On a side note, when an exception is thrown from inside the
> __autoload() function, PHP only reports 'exception thrown in
> __autoload' and no other information about the exception. Is
> this a bug?
I don't think so. The exception sh
Hello Dan,
Friday, October 10, 2003, 7:37:29 PM, you wrote:
> Hi Marcus-
> Marcus Börger wrote:
>>Constants are bound to the class rather then to the objects. Hence they
>>behave pretty much like static properties or default values of declared
>>properties and like the latter they are read only
Wez-
Wez Furlong wrote:
Performance wise, its not going to make much difference,
because no matter what you are doing, to dynamically resolve
the value of a constant will involve hash lookups.
The other alternative, and this is the official POV of the
Zend guys IIRC, is that you can use eval() to
> >Performance wise, its not going to make much difference,
> >because no matter what you are doing, to dynamically resolve
> >the value of a constant will involve hash lookups.
> >
> >The other alternative, and this is the official POV of the
> >Zend guys IIRC, is that you can use eval() to look
Hi Wez-
Wez Furlong wrote:
This sounds like you're doing something wrong (no offense!).
You want to access a *constant* of a descendant class, when
your ancestor doesn't even know if it exists.
Well, that sounds more than a little odd (backwards even).
Why not just use a property with a know
Hi Ard-
Sorry, I must of misunderstood you. Yes, that would work
fine. Now copy/paste the getElementName() function in the
derived class to all 100's of other derived classes and wonder
why you couldn't just do this with one base class function. :)
Dan Cox
Ard Biesheuvel wrote:
This works fine
Hi Marcus-
Marcus Börger wrote:
Constants are bound to the class rather then to the objects. Hence they
behave pretty much like static properties or default values of declared
properties and like the latter they are read only.
understood.
The only question here is whether we want to be able t
This works fine for me:
abstract class Base {
abstract function getElementName();
function getName()
{
return $this->getElementName();
}
}
class Derived extends Base {
const ElementName = 'DerivedElementName';
function getElementN
Ard Biesheuvel wrote:
How about an abstract method in the base class called
getElementName(), which each child will implement to return its
element name.
Hi Ard-
This wouldn't work because the abstract method in the base class is
still running in the 'base class scope' and can't see the child'
Hello Dan,
Friday, October 10, 2003, 10:53:20 AM, you wrote:
> Marcus-
> Marcus Börger wrote:
>> Hello Dan,
>>
>>
>>> Currently, I don't see an easy way of accessing the constants of a child
>>> class from a base class.
>>>
>>
>> Use the child's class name:
>> php -r 'class t{static functi
Hello Wez,
Friday, October 10, 2003, 12:44:07 PM, you wrote:
> This sounds like you're doing something wrong (no offense!).
> You want to access a *constant* of a descendant class, when
> your ancestor doesn't even know if it exists.
> Well, that sounds more than a little odd (backwards even).
How about an abstract method in the base class called getElementName(),
which each child will implement to return its element name.
--
Ard
--
PHP Internals - PHP Runtime Development Mailing List
To unsubscribe, visit: http://www.php.net/unsub.php
t eval above.
Hope that helps!
--Wez.
- Original Message -
From: "Dan Cox" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, October 10, 2003 8:10 AM
Subject: [PHP-DEV] Accessing child constants from base class
> PHP5 10/10/2003 CVS.
>
> Currently, I don't
Marcus-
Marcus Börger wrote:
Hello Dan,
Currently, I don't see an easy way of accessing the constants of a child
class from a base class.
Use the child's class name:
php -r 'class t{static function f(){echo tt::c;}}class tt extends
t{const c="Hello\n";} t::f();'
Yes, this is possible,
Hello Dan,
Friday, October 10, 2003, 9:10:23 AM, you wrote:
> PHP5 10/10/2003 CVS.
> Currently, I don't see an easy way of accessing the constants of a child
> class from a base class.
Use the child's class name:
php -r 'class t{static function f(){echo tt::c;}}class tt extends t{const
c="Hello
PHP5 10/10/2003 CVS.
Currently, I don't see an easy way of accessing the constants of a child
class from a base class. Consider the following basic example:
abstract class myBaseClass {
function getXML() {
$doc = new domDocument();
$node = $doc->createElement(child::ElementName);
$doc-
16 matches
Mail list logo
