Adding functions to STDClass

Question

This is something that has been bugging me for a while and today I found a relatively easy solution that I thought I'd share as I couldn't seem to find any decent answer.

I have this code for my DB wrapper:

function find($id) {
    //Fetch the results
    //Put the results into an array

    return (object) $results;
}

So I could do:

$result = DB::find(1);
echo $result->name; #=> Hello world

But I need to be able to assign methods to that new result. In this case to_json

This isn't about the to_json function. It's about being able to implement functions that the $results variable can use. — andy
– andy, Commented Nov 5, 2012 at 16:52
That was a crappy explanation sorry. For example you could implement this in future: pastebin.com/swuf3rEi The save() function would not have been previously possible. — andy
– andy, Commented Nov 5, 2012 at 16:54
there is no sane way of adding methods to an instance in PHP. If you need a save or toJson or whatever method, write a class. — Gordon
– Gordon, Commented Nov 5, 2012 at 16:57

andy · Accepted Answer · 2012-11-05 16:31:32Z

1

You can do so like this:

class Result {
    protected $results;

    public function __construct($results) {
        $this->results = $results;

        foreach($results as $key => $value) {
            $this->$key = $value; 
        }
    }

    public function to_json() {
        return json_encode($this->results);
    }
}

Now instead of returning return (object) $result just do: return new Result($result);

$result = DB::find(1);
echo $result->name;      #=> Hello world
echo $result->to_json(); #=> {"name":"Hello world","content":"Hello World!"}

answered Nov 5, 2012 at 16:31

andy

2,4193 gold badges32 silver badges51 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Adding functions to STDClass

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related