Storing a Closure Function in a Class Property in PHP

Question

ok I do have the code below

bar();
       }
    }

    $mee         


        

Answer 1

You need to exploit some magic functionality of PHP (__call) to make use of that. Extend from Extendable for example:

class Extendable {
    static function import($context) {
        $self = new static();
        while (is_callable($context)) $context = $context($self);
        if (is_array($context) || is_object($context) || is_a($context, 'Traversable')) {
            foreach($context as $key => $value)
                $self->$key = &$value; # preserve keys if
        }
        return $self;
    }
    public function __call($name, $args) {
        if (isset($this->$name) && is_callable($this->$name)) {
            return call_user_func_array($this->$name, $args);
        }
        throw new BadFunctionCallException(sprintf('Undefined function %s.', $name));
    }
}

And you can do the job. It's not that nice. Background and examples are in one of my blog posts:

• PHP: Extending stdClass with Closures (plus Visitor)

You can naturally implement that magic functionality your own, too.