Posted by ZeldorBlat on 05/02/07 22:02

On May 2, 4:56 pm, Mark Stanton <m...@vowleyfarm.co.uk> wrote:
> I'd like to implement one of these (a function table).
>
> First I thought that execution through variable functions
> ($foo='bar', $foo() executes the function 'bar') would work work, but
> this seems to get upset when my function is actually a method of a
> class.

You can use variable function names with class methods. The following
works just fine and echo's out "baz":

class Foo {
public function bar($x) {
echo $x;
}
}

$f = new Foo();

$funcName = 'bar';
$f->$funcName('baz');

>
> Then I hoped that call_user_func(_array) would do the trick, but this
> seems to get upset when the method uses "this", which is something of
> a serious limitation it seems to me.

call_user_func() can also be used with object methods (even when they
reference "this"). The following also correctly echo's out "baz":

class Foo {
protected $x = 'baz';

public function bar() {
echo $this->x;
}
}

$f = new Foo();
call_user_func(array($f, 'bar'));

>
> Anyone know ways around either or both of these apparent (to me)
> problems?
>
> Regards
> Mark

So these aren't really problems.

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