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run code in 150+ 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 = $test->__set($this, 'secret'); // end editing here echo $test->run();
Output for 7.1.0
Fatal error: Uncaught Error: Using $this when not in object context in /in/VW8LR:45 Stack trace: #0 {main} thrown in /in/VW8LR on line 45
Process exited with code 255.
Output for 7.0.0 - 7.0.14
Notice: Undefined variable: this in /in/VW8LR on line 45 Warning: Illegal string offset 'secret' in /in/VW8LR on line 33 Warning: Illegal string offset 's' in /in/VW8LR on line 33 Fatal error: Uncaught Error: Call to undefined function secret() in /in/VW8LR:34 Stack trace: #0 /in/VW8LR(45): Test->__set(NULL, 'secret') #1 {main} thrown in /in/VW8LR on line 34
Process exited with code 255.
Output for 5.1.0 - 5.3.29, hhvm-3.12.0
Notice: Undefined variable: this in /in/VW8LR on line 45 Fatal error: Call to undefined function secret() in /in/VW8LR on line 34
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.4.0 - 5.6.28
Notice: Undefined variable: this in /in/VW8LR on line 45 Warning: Illegal string offset 'secret' in /in/VW8LR on line 33 Warning: Illegal string offset 's' in /in/VW8LR on line 33 Fatal error: Call to undefined function secret() in /in/VW8LR on line 34
Process exited with code 255.
Output for 5.0.4 - 5.0.5
Notice: Undefined variable: callback in /in/VW8LR on line 45 Notice: Undefined variable: this in /in/VW8LR on line 45 Fatal error: Call to undefined function secret() in /in/VW8LR on line 34
Process exited with code 255.
Output for 5.0.0 - 5.0.3
Notice: Undefined variable: callback in /in/VW8LR on line 45 Notice: Undefined variable: this in /in/VW8LR on line 45 Fatal error: Call to undefined function secret() in /in/VW8LR on line 34
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/VW8LR on line 21
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/VW8LR on line 21
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/VW8LR on line 21
Process exited with code 255.