Recursive closure in PHP 5.4

gistfile1.aw

<?php
class foo {
    
    public $bar;
    
    public function __construct(Closure $closure)
    {
        $this->bar = Closure::bind($closure, $this);
    }
    
    public function __call($method, $args)
    {
        if (is_callable(array($this, $method)))
            return call_user_func_array($this->$method, $args);
    }
}

$foo = new foo(function($value){
    //Use stripslashes here as an example but could be any function/operation.
    return (is_array($value) ? array_map($this->bar, $value) : stripslashes($value));
});

$values = [
	'\foo',
	'\bar',
	['O\'Reilly', '\\ABC']
];
$processed = $foo->bar($values);
var_dump($processed);