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Created September 22, 2010 04:26
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// Define the 'class' class
$class = Obj()
->fn('new', function ($class) {
$newClass = Obj($class->methods)
->fn('new', function($class) {
$obj = Obj($class->imethods);
$args = func_get_args();
call_user_func_array(array($obj, 'init'), $args);
return $obj;
return $newClass;
->fn('def', function ($t, $name, $fn) {
$t->imethods[$name] = $fn;
return $t;
->fn('extend', function ($t) {
return clone $t;
// Define a new class
$animal = $class->new()
->def('init', function($t, $name) {
$t->name = $name;
->def('speak', function($t) {
echo "My name is $t->name\n";
// Extend a class
$dog = $animal->extend()
->def('speak', function($t) {
echo "My name is $t->name, I have just met you and I love you, SQUIRREL!\n";
->def('bark', function($t) {
echo "Woof!\n";
$jimmy = $animal->new('Jimmy');
$doug = $dog->new('Doug');
// ---- The guts...
class Obj
public function __construct($methods=array())
$this->methods = $methods;
public function method($name)
if (!isset($this->methods[$name]))
throw new BadMethodCallException();
return $this->methods[$name];
public function fn($name, $fn)
$this->methods[$name] = $fn;
return $this;
public function __call($name, $args)
return call_user_func_array(
array_merge(array($this), $args)
// Allow chaining method calls off the constructor..
function Obj($methods=array())
return new Obj($methods);
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dhotson commented Sep 22, 2010

Hah, that's a pretty cool hack. /impressed

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very interesting!

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Jalopy commented Sep 22, 2010

I like it :)

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brennen commented Sep 23, 2010


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Very cool, could be a good way to implement inceptors, sequences. tried an implementation haven't tested it at all though

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Gorcyn commented Sep 24, 2010

Definitely not OO !

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Cool stuff!

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Forked with view to providing a replacement for StdClass that allows you to attach callable methods to.

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igorzg commented Sep 16, 2013

This pattern is mostly used in javascript.

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