3v4l.org

run code in 300+ PHP versions simultaneously
<?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 * 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 $value = $v(); // and a callback! $this->{$key} = $value; } } $test = new Test; // start editing here $test->callback = "All your Base are Belong to us." // end editing here echo $test->run();
Output for 5.4.0 - 5.4.27
Parse error: syntax error, unexpected 'echo' (T_ECHO) in /in/HdGGl on line 47
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_ECHO in /in/HdGGl on line 47
Process exited with code 255.

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