Posted by Toby A Inkster on 07/23/07 14:45

Sanders Kaufman wrote:

> Parent. Parents. Hmmm. That takes me to a new question - I understand
> that a PHP class be an extension of more than one parent class.
> (e.g. "class myClass extends oMommy, oDaddy")

You understand differently to me then. This is called "multiple
inheritance" and very few OO languages support it.

You can inherit from more than one class like this:

class A {}
class B extends A {}
class C extends B {} /* and thus A */

but not like this:

class A {}
class B {}
class C extends A, B {}

If you use interfaces, you can write a class that implements multiple
interfaces:

interface A {}
interface B {}
class A implements A, B {}

and that is fine. (Same story with Java.)

--
Toby A Inkster BSc (Hons) ARCS
[Geek of HTML/SQL/Perl/PHP/Python/Apache/Linux]
[OS: Linux 2.6.12-12mdksmp, up 32 days, 18:20.]

Parsing an HTML Table with PEAR's XML_HTTPSax3
http://tobyinkster.co.uk/blog/2007/07/20/html-table-parsing/

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