php recursion, function doesn't return any value

Question

I want my function to return whole url, starting from node with given id, and serching for parents, last one has parent_id =1. My function almost works, in echo"$wholeUrl "; i have my url, but function doesn't retun it and I don't know wtf, please help.

here's my code:

function getUrl($xml,$id){

$wholeUrl="";
$wholeUrl= getMyUrl($xml,$id,$wholeUrl);
return $wholeUrl;

}

function getMyUrl($xml,$idWew, $wholeUrl){

foreach($xml as $node) {
    $par = $node->parent_id;
    $ide = $node->id;
    $url = $node->url;
    $name = $node->name;
    settype($par,'integer');
    settype($ide,'integer');

    if($ide==$idWew){

        $wholeUrl=$url."/".$wholeUrl;

        if($par==1){
            echo"$wholeUrl ";
            return $wholeUrl;
            break;
        }else{

            getMyUrl($xml,$par,$wholeUrl);
        }
    }

}
}


print_r(getUrl($xmlcat,1877));

$xmlcat is flat array with this structure:

SimpleXMLElement Object ( [id] => 1876 [parent_id] => 1 [name] => blablabla, bla, bla [url] => bla-bla-bla-bla ) 

Answer 1

You need to return getMyUrl:

    /* .... */
    }else{

        return getMyUrl($xml,$par,$wholeUrl);
    }
    /* .... */