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run code in 150+ php & hhvm versions
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<?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 class Decrypt implements ArrayAccess { public $secret; function __construct($test) { $this->secret = function() { $this->secret = str_rot13($this->secret); }; $this->secret = $this->secret->bindTo($test, $test); } function __invoke() { return $this->secret; } /* Implementation of abstract definations */ /** * abstract public boolean offsetExists ( mixed $offset ) */ public function offsetExists($offset) { return isset($this->array[$offset]); } /** * abstract public mixed offsetGet ( mixed $offset ) */ public function offsetGet($offset) { $offset = (string) $offset; return isset($this->array[$offset]) ? $this->array[$offset] : null; } /** * abstract public void offsetSet ( mixed $offset , mixed $value ) */ public function offsetSet($offset, $value) { if (is_null($offset)) { $this->array[] = $value; } else { $this->array[$offset] = $value; } } /** * abstract public void offsetUnset ( mixed $offset ) */ public function offsetUnset($offset) { unset($this->array[$offset]); } } $decrypt = new Decrypt($test); $test->callback = $decrypt; // end editing here echo $test->run();
Output for 7.1.0
Recoverable fatal error: Object of class Decrypt could not be converted to string in /in/DcRkT on line 68
Process exited with code 255.
Output for 5.4.0 - 5.6.28, hhvm-3.10.0, 7.0.0 - 7.0.14
Catchable fatal error: Object of class Decrypt could not be converted to string in /in/DcRkT on line 68
Process exited with code 255.
Output for hhvm-3.12.0
Fatal error: Uncaught Error: Object of class Decrypt could not be converted to string in /in/DcRkT:68 Stack trace: #0 /in/DcRkT(30): Decrypt->offsetGet() #1 /in/DcRkT(93): Test->__set() #2 {main}
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Fatal error: Call to undefined method Closure::bindTo() in /in/DcRkT on line 49
Process exited with code 255.
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/DcRkT on line 45
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/DcRkT on line 45
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/DcRkT on line 20
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/DcRkT on line 20
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/DcRkT on line 20
Process exited with code 255.