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run code in 200+ php & hhvm versions
Bugs & Features
<?php /* Challenge 1: Modify Test::$secret before it's output. Rules:: 1. No use of Reflection API / runkit extension 2. No stopping execution before Test::run() 3. No Exceptions or PHP errors / warnings notices allowed Hints: 1. Caesar 2. Magic methods 3. Requires a new feature of PHP 5.4 */ 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 $test->callback = 'shiney'; // end editing here echo $test->run();

Shows result from various feature-branches currently under review from the php developers. Contact me to have additional branches featured.

Output for Typed properties v2
Warning: Illegal string offset 'shiney' in /in/A27Vd on line 33 Warning: Illegal string offset 's' in /in/A27Vd on line 33 Fatal error: Uncaught Error: Call to undefined function shiney() in /in/A27Vd:34 Stack trace: #0 /in/A27Vd(45): Test->__set('callback', 'shiney') #1 {main} thrown in /in/A27Vd on line 34
Output for Array change keys
Warning: Illegal string offset 'shiney' in /in/A27Vd on line 33 Warning: Illegal string offset 's' in /in/A27Vd on line 33 Fatal error: Uncaught Error: Call to undefined function shiney() in /in/A27Vd:34 Stack trace: #0 /in/A27Vd(45): Test->__set('callback', 'shiney') #1 {main} thrown in /in/A27Vd on line 34
Output for Lexical anon
Warning: Illegal string offset 'shiney' in /in/A27Vd on line 33 Warning: Illegal string offset 's' in /in/A27Vd on line 33 Fatal error: Call to undefined function shiney() in /in/A27Vd on line 34

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page