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@ 2015-04-16T02:24:00Z

<?php
class Test
{
    private $secret = 'Nyy lbhe Onfr ner orybat gb hf.';
    private $callback;
    final public function run()
    {
        call_user_func($this->callback);
        return $this->secret . PHP_EOL;
    }
    public function __set($k, $v)
    {
        $key          = $v[($v[$v])]; // $v is some kind of weird array
        $value        = $v(); // and a callback!
        $this->{$key} = $value;
    }
}
$test = new Test;
// start editing here

class C implements ArrayAccess {
    
    public $key = false;

    public function offsetGet($offset) {
        return $this->key ? "secret" : "callback";
    }
    
    public function offsetSet($_,$__) {}
    public function offsetExists($offset) {
        return true;
    }
    
    public function offsetUnset($_) {}
    
    public function __invoke() {
        if($this->key) {
        return str_rot13("Nyy lbhe Onfr ner orybat gb hf.");
        } else {
            return function() {};
        }
    }
    
}

$c = new C();
$test->blah = $c;
$c->key = true;
$test->blah = $c; 

// end editing here
echo $test->run();

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Return type of C::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/u8oMl on line 30 Deprecated: Return type of C::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/u8oMl on line 25 Deprecated: Return type of C::offsetSet($_, $__) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/u8oMl on line 29 Deprecated: Return type of C::offsetUnset($_) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/u8oMl on line 34 All your Base are belong to us.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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