PHP 4: does method_exist return true if parent class method even if child class forgot to call parent::

[lkrubner@geocities.com]

My code was dying on the line below where I use method_exists:

if (class_exists($ nameOfClassToBe Used)) {
$object = new $nameOfClassToB eUsed();
$this->arrayOfAllTheO bjectsSoFarLoad ed[$nameOfClassToB eUsed] = &
$object;
if (method_exists( $object, "setCallingCode "))
$object->setCallingCode ($nameOfFunctio nOrClassCalling );
return $object;
} else {
$this->error("$nameOf ClassToBeUsed not found. The code that wants
this class is $nameOfFunction OrClassCalling ");
}



The method is in the parent class yet I'd forgotten to call parent:: in
the constructor of the child class. It seems to me that method_exists
was testing true, though the method was not truly available, and then
the code died. Adding parent:: to the constructor of the child solved
the problem. Is this a bug in PHP?

[Jacob Atzen]

Re: PHP 4: does method_exist return true if parent class method even if child class forgot to call parent::

On 2005-05-28, lkrubner@geocit ies.com <lkrubner@geoci ties.com> wrote:[color=blue]
> The method is in the parent class yet I'd forgotten to call parent::
> in the constructor of the child class. It seems to me that
> method_exists was testing true, though the method was not truly
> available, and then the code died. Adding parent:: to the constructor
> of the child solved the problem. Is this a bug in PHP?[/color]

You shouldn't have to call the parent class to get access to its
methods. If class B extends class A then all methods of class A is
available in class B.

--
Cheers,
- Jacob Atzen

[Wayne]

Re: PHP 4: does method_exist return true if parent class method even if child class forgot to call parent::

On 28 May 2005 07:03:45 -0700, lkrubner@geocit ies.com wrote:
[color=blue]
>Adding parent:: to the constructor of the child solved
>the problem. Is this a bug in PHP?[/color]

Nope.
[color=blue]
>The method is in the parent class yet I'd forgotten to call parent:: in
>the constructor of the child class.[/color]

That's correct behaviour. Calling the parents constructor has nothing
to do with whether the methods are available in a child class.