PHP - get_class_methods() Problem

Question

I've this sample code:

class A
{
 public function A_A() { /* ... */ }

 public function A_B() { /* ... */ }
}

class B extends A
{
 public function B_A() { /* ... */ }

 public function B_B() { /* ... */ }

 public function B_C()
 {
  return get_class_methods($this);
 }
}

$a = new A();
$b = new B();

Doing this:

echo '<pre>';
print_r($b->B_C());
echo '</pre>';

Yields the following output:

Array
(
    [0] => B_A
    [1] => B_B
    [2] => B_C
    [3] => A_A
    [4] => A_B
)

How can I make it return only the following methods?

Array
(
    [0] => B_A
    [1] => B_B
    [2] => B_C
)

I've a method in class A that should call all the methods in class B, the problem is of course that it leads to a infinite loop due to the values returned by get_class_methods().

Community · Accepted Answer · 2023-11-17 20:38:18Z

3

You might need full strength Reflection. However, before you go there, it might be worth trying something like this.

array_diff(get_class_methods($this), get_class_methods(get_parent_class($this)))

edited Nov 17, 2023 at 20:38

CommunityBot

11 silver badge

answered Dec 25, 2009 at 3:23

Ewan Todd

7,33229 silver badges35 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Amber Over a year ago

That might not return the right results if the class doing the extending overrode a method in the extended class, though.

Alix Axel Over a year ago

Thanks Ewan, the solution you provided is enough for me.

Amber · Accepted Answer · 2009-12-25 03:12:56Z

0

You can't. Part of the functionality of extending a class is that you get all of the methods of the class you extended, in the new class, identical to as if you defined them in the new class itself.

answered Dec 25, 2009 at 3:12

Amber

531k89 gold badges643 silver badges558 bronze badges

1 Comment

Amber Over a year ago

You might be able to check ReflectionMethod's getDeclaringClass() result to check and see if the current class declared it, but I'm not sure whether an extended class returns itself or what it extended from for inherited methods: php.net/manual/en/reflectionmethod.getdeclaringclass.php

Collectives™ on Stack Overflow

PHP - get_class_methods() Problem

2 Answers 2

2 Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

2 Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related