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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 $test->callback = "All your Base are Belong to us."; // end editing here echo $test->run();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /in/kmJBV:31 Stack trace: #0 /in/kmJBV(43): Test->__set('callback', 'All your Base a...') #1 {main} thrown in /in/kmJBV on line 31
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Illegal string offset 'All your Base are Belong to us.' in /in/kmJBV on line 31 Warning: Illegal string offset 'A' in /in/kmJBV on line 31 Fatal error: Uncaught Error: Call to undefined function All your Base are Belong to us.() in /in/kmJBV:32 Stack trace: #0 /in/kmJBV(43): Test->__set('callback', 'All your Base a...') #1 {main} thrown in /in/kmJBV on line 32
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Warning: Illegal string offset 'All your Base are Belong to us.' in /in/kmJBV on line 31 Warning: Illegal string offset 'A' in /in/kmJBV on line 31 Fatal error: Call to undefined function All your Base are Belong to us.() in /in/kmJBV on line 32
Process exited with code 255.
Output for 5.2.3 - 5.2.17, 5.3.0 - 5.3.29
Fatal error: Call to undefined function All your Base are Belong to us.() in /in/kmJBV on line 32
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
<br /> <b>Fatal error</b>: Call to undefined function All your Base are Belong to us.() in <b>/in/kmJBV</b> on line <b>32</b><br />
Process exited with code 255.
Output for 5.0.0 - 5.0.5
<br /> <b>Fatal error</b>: Cannot access private property Test::$callback in <b>/in/kmJBV</b> on line <b>43</b><br />
Process exited with code 255.
Output for 4.4.2 - 4.4.9
<br /> <b>Parse error</b>: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/kmJBV</b> on line <b>21</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
<br /> <b>Parse error</b>: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/kmJBV</b> on line <b>21</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in <b>/in/kmJBV</b> on line <b>21</b><br />
Process exited with code 255.
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