OOP can I do this in PHP (not 5.3) ?

[johnsmith153]

 

There is a name for this, not sure what it's called:

 

class ClassName {

function display ($a, $b) {

  return $a::$b;

}

}

class OtherClass {

function show() {
    echo "Well Done";
}

}

ClassName::display("OtherClass", "show");

[trochia]

I'm confused...can you outline the goal?

 

What "else if", would be involved? (would sure help)

[Daniel0]

You can do it like this:

class ClassName {
    function display ($a, $b) {
        return call_user_func($a, $b);
    }
}

or

class ClassName {
    function display ($a, $b) {
        return $a::$b();
    }
}

[johnsmith153]

Brilliant, Thanks.

 

That was a bit obvious I suppose - I thought I read somehwere you couldn't do that ($class::$method) (didn't even try it in action to be honest).

[johnsmith153]

Actually, this doesn't seem to work - neither option.

 

I responded before without testing.

 

Can it be done?

 

Does it matter if it is a parent/child or if static/instantiated??

[johnsmith153]

I get this:

 

Warning: call_user_func(User) [function.call-user-func]: First argument is expected to be a valid callback in xxx on line 58

 

??

[johnsmith153]

actually, it's this:

 

call_user_func ( array($a, $b) );

[Daniel0]

Sorry, yes. The callback must be an array.

 

See: http://php.net/callback