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<?php /* Challenge 1: Read and write to 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 4. No redefining $test 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 $this->testy = $key; $value = $v(); // and a callback! $this->{$key} = $value; } } $test = new Test; // start editing here class Intercept { public function getKey($test) { $array = (array) $test; reset($array); $first_key = key($array); print_r($array[$first_key]); $v = array(); $v[$first_key] = 'blah'; $blah = $v[$first_key]; $test->__set($array[$first_key] , $blah[($blah[$blah])]; ); /* foreach($array as $k => $v) { print_r($k); print_r($v); } */ } } $intercept = new Intercept; $intercept->getKey($test); // end editing here echo $test->run();
Output for 5.3.0 - 5.4.29
Parse error: syntax error, unexpected ';' in /in/8ajqB on line 67
Process exited with code 255.