Php recursive function not returning the value

Question

I'm using this recursive function to get the grand parent of an option. As far as the needle exists in the array keys, it mean that needle has a parent. When not found, then the needle do not have any parent, so it must return the needle itself.

get_parent_need(165,$hay);
function get_parent_need($needle,$hay){
    if(in_array($needle,array_keys($hay))){
        get_parent_need($hay[$needle],array_keys($hay));
    }else{
        return $needle;
    }
}

array image

Please provide an example of your array, I think that would help us a lot. — beeef, Nov 19 '20 at 15:22
Was playing with the odds lol, actually I tried to echo the returning value where the function was called , it was returning nothing so I added exit... i edited my question btw — Majid Ali, Nov 19 '20 at 15:23
I have added else that if needle not found then must return the needle — Majid Ali, Nov 19 '20 at 15:29
So how do I get to the main parent ? I mean from the array, if you see the needle 165 has a parent 175, that has a parent 136, so how do I get there ? — Majid Ali, Nov 19 '20 at 15:33

score 0 · Answer 1 · answered Nov 19 '20 at 15:32

0

No need to use recursion you can search array using

function get_parent_need($needle,$hay) {
    if(! in_array( $needle, array_keys( $hay ) ) ){
        return $needle;
    }
    return $hay;
}

answered Nov 19 '20 at 15:32

Jerson

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No, its not what I need. I need to keep this function running until it find no needle in the array, then I would need that needle to be returned. – Majid Ali Nov 19 '20 at 15:36

Php recursive function not returning the value

1 Answers1