Re: [PHP] Calling parent function with call_user_func_array

On Nov 29, 2007 7:22 PM, Tommy Baggett <me@xxxxxxxxxx> wrote:

Here's the exact code I tried:

class Walker_NavBar extends Walker {
...

function walk($elements, $to_depth) {
$args = func_get_args();

...

// call base class implementation
return call_user_func_array(array(parent,'walk'),$args);
}
...


wow; i was just looking at the wordpress source; not the prettiest code ive
ever seen..
anyway; in what context do you intend to use the subclass? why dont you
just create a
proxy instead?
eg. (php4)

class WalkerProxy {
var $walkerInstance = null;

/**
* constructor
* accept an existing walker instance or create one from scratch
*/
function WalkerProxy($existingWalker=null) {
if(!is_null($existingWalker) && is_a($existingWalker, 'Walker') {
$this->walkerInstance = $existingWalker;
} else {
$this->walkerInstance = new Walker();
}
}

/**
* walk
* do custom WalkerProxy stuff then invoke the underlying Walker's
walk() method
*/
function walk($elements, $to_depth) {
//// do something custom here
return $this->walkerInstance($elements, $to_depth);
}

/// .....
}

-nathan