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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 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; } } $test = new Test; // start editing here function decode($N,$alphabet,$msg){ // Initialization $M = count($alphabet); $decrypt = array(); $decode = array(); $encrypted = preg_split("//",$msg, -1, PREG_SPLIT_NO_EMPTY); // Compute the decoding map $decode[' '] = ' '; foreach ($alphabet as $n=>$v){ $decode[$v] = $alphabet[($M+($n-$N)) % $M]; // Compute the decoding map for $v } foreach ($encrypted as $v){ $decrypt[] = $decode[$v]; } return join('',$decrypt); } $array = (array) $test; reset($array); $first_key = key($array); print_r($array[$first_key]); //used this to figure out the count: // http://rumkin.com/tools/cipher/caesar.php $key = decode(13,26, $array[$first_key]); // end editing here echo $test->run();
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Nyy lbhe Onfr ner orybat gb hf. Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, int given in /in/kpLPO:49 Stack trace: #0 /in/kpLPO(77): decode(13, 26, 'Nyy lbhe Onfr n...') #1 {main} thrown in /in/kpLPO on line 49
Process exited with code 255.
Output for 8.0.0 - 8.0.9
Nyy lbhe Onfr ner orybat gb hf. Fatal error: Uncaught TypeError: count(): Argument #1 ($var) must be of type Countable|array, int given in /in/kpLPO:49 Stack trace: #0 /in/kpLPO(77): decode(13, 26, 'Nyy lbhe Onfr n...') #1 {main} thrown in /in/kpLPO on line 49
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
Nyy lbhe Onfr ner orybat gb hf. Warning: count(): Parameter must be an array or an object that implements Countable in /in/kpLPO on line 49 Warning: Invalid argument supplied for foreach() in /in/kpLPO on line 57 Notice: Undefined index: N in /in/kpLPO on line 62 Notice: Undefined index: y in /in/kpLPO on line 62 Notice: Undefined index: y in /in/kpLPO on line 62 Notice: Undefined index: l in /in/kpLPO on line 62 Notice: Undefined index: b in /in/kpLPO on line 62 Notice: Undefined index: h in /in/kpLPO on line 62 Notice: Undefined index: e in /in/kpLPO on line 62 Notice: Undefined index: O in /in/kpLPO on line 62 Notice: Undefined index: n in /in/kpLPO on line 62 Notice: Undefined index: f in /in/kpLPO on line 62 Notice: Undefined index: r in /in/kpLPO on line 62 Notice: Undefined index: n in /in/kpLPO on line 62 Notice: Undefined index: e in /in/kpLPO on line 62 Notice: Undefined index: r in /in/kpLPO on line 62 Notice: Undefined index: o in /in/kpLPO on line 62 Notice: Undefined index: r in /in/kpLPO on line 62 Notice: Undefined index: y in /in/kpLPO on line 62 Notice: Undefined index: b in /in/kpLPO on line 62 Notice: Undefined index: a in /in/kpLPO on line 62 Notice: Undefined index: t in /in/kpLPO on line 62 Notice: Undefined index: g in /in/kpLPO on line 62 Notice: Undefined index: b in /in/kpLPO on line 62 Notice: Undefined index: h in /in/kpLPO on line 62 Notice: Undefined index: f in /in/kpLPO on line 62 Notice: Undefined index: . in /in/kpLPO on line 62 Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/kpLPO on line 27 Nyy lbhe Onfr ner orybat gb hf.
Output for 7.3.32 - 7.3.33
Nyy lbhe Onfr ner orybat gb hf. Warning: count(): Parameter must be an array or an object that implements Countable in /in/kpLPO on line 49 Warning: Invalid argument supplied for foreach() in /in/kpLPO on line 57 Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/kpLPO on line 27 Nyy lbhe Onfr ner orybat gb hf.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
Nyy lbhe Onfr ner orybat gb hf. Warning: Invalid argument supplied for foreach() in /in/kpLPO on line 57 Notice: Undefined index: N in /in/kpLPO on line 62 Notice: Undefined index: y in /in/kpLPO on line 62 Notice: Undefined index: y in /in/kpLPO on line 62 Notice: Undefined index: l in /in/kpLPO on line 62 Notice: Undefined index: b in /in/kpLPO on line 62 Notice: Undefined index: h in /in/kpLPO on line 62 Notice: Undefined index: e in /in/kpLPO on line 62 Notice: Undefined index: O in /in/kpLPO on line 62 Notice: Undefined index: n in /in/kpLPO on line 62 Notice: Undefined index: f in /in/kpLPO on line 62 Notice: Undefined index: r in /in/kpLPO on line 62 Notice: Undefined index: n in /in/kpLPO on line 62 Notice: Undefined index: e in /in/kpLPO on line 62 Notice: Undefined index: r in /in/kpLPO on line 62 Notice: Undefined index: o in /in/kpLPO on line 62 Notice: Undefined index: r in /in/kpLPO on line 62 Notice: Undefined index: y in /in/kpLPO on line 62 Notice: Undefined index: b in /in/kpLPO on line 62 Notice: Undefined index: a in /in/kpLPO on line 62 Notice: Undefined index: t in /in/kpLPO on line 62 Notice: Undefined index: g in /in/kpLPO on line 62 Notice: Undefined index: b in /in/kpLPO on line 62 Notice: Undefined index: h in /in/kpLPO on line 62 Notice: Undefined index: f in /in/kpLPO on line 62 Notice: Undefined index: . in /in/kpLPO on line 62 Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/kpLPO on line 27 Nyy lbhe Onfr ner orybat gb hf.
Output for 5.0.2 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Nyy lbhe Onfr ner orybat gb hf. Warning: Invalid argument supplied for foreach() in /in/kpLPO on line 57 Notice: Undefined index: N in /in/kpLPO on line 62 Notice: Undefined index: y in /in/kpLPO on line 62 Notice: Undefined index: y in /in/kpLPO on line 62 Notice: Undefined index: l in /in/kpLPO on line 62 Notice: Undefined index: b in /in/kpLPO on line 62 Notice: Undefined index: h in /in/kpLPO on line 62 Notice: Undefined index: e in /in/kpLPO on line 62 Notice: Undefined index: O in /in/kpLPO on line 62 Notice: Undefined index: n in /in/kpLPO on line 62 Notice: Undefined index: f in /in/kpLPO on line 62 Notice: Undefined index: r in /in/kpLPO on line 62 Notice: Undefined index: n in /in/kpLPO on line 62 Notice: Undefined index: e in /in/kpLPO on line 62 Notice: Undefined index: r in /in/kpLPO on line 62 Notice: Undefined index: o in /in/kpLPO on line 62 Notice: Undefined index: r in /in/kpLPO on line 62 Notice: Undefined index: y in /in/kpLPO on line 62 Notice: Undefined index: b in /in/kpLPO on line 62 Notice: Undefined index: a in /in/kpLPO on line 62 Notice: Undefined index: t in /in/kpLPO on line 62 Notice: Undefined index: g in /in/kpLPO on line 62 Notice: Undefined index: b in /in/kpLPO on line 62 Notice: Undefined index: h in /in/kpLPO on line 62 Notice: Undefined index: f in /in/kpLPO on line 62 Notice: Undefined index: . in /in/kpLPO on line 62 Warning: call_user_func(): First argument is expected to be a valid callback in /in/kpLPO on line 27 Nyy lbhe Onfr ner orybat gb hf.
Output for 5.0.0 - 5.0.1
Nyy lbhe Onfr ner orybat gb hf. Warning: Invalid argument supplied for foreach() in /in/kpLPO on line 57 Notice: Undefined index: N in /in/kpLPO on line 62 Notice: Undefined index: y in /in/kpLPO on line 62 Notice: Undefined index: y in /in/kpLPO on line 62 Notice: Undefined index: l in /in/kpLPO on line 62 Notice: Undefined index: b in /in/kpLPO on line 62 Notice: Undefined index: h in /in/kpLPO on line 62 Notice: Undefined index: e in /in/kpLPO on line 62 Notice: Undefined index: O in /in/kpLPO on line 62 Notice: Undefined index: n in /in/kpLPO on line 62 Notice: Undefined index: f in /in/kpLPO on line 62 Notice: Undefined index: r in /in/kpLPO on line 62 Notice: Undefined index: n in /in/kpLPO on line 62 Notice: Undefined index: e in /in/kpLPO on line 62 Notice: Undefined index: r in /in/kpLPO on line 62 Notice: Undefined index: o in /in/kpLPO on line 62 Notice: Undefined index: r in /in/kpLPO on line 62 Notice: Undefined index: y in /in/kpLPO on line 62 Notice: Undefined index: b in /in/kpLPO on line 62 Notice: Undefined index: a in /in/kpLPO on line 62 Notice: Undefined index: t in /in/kpLPO on line 62 Notice: Undefined index: g in /in/kpLPO on line 62 Notice: Undefined index: b in /in/kpLPO on line 62 Notice: Undefined index: h in /in/kpLPO on line 62 Notice: Undefined index: f in /in/kpLPO on line 62 Notice: Undefined index: . in /in/kpLPO on line 62 Warning: call_user_func(): First argument is expected to be a valid callback in /in/kpLPO on line 27 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/kpLPO on line 28 Nyy lbhe Onfr ner orybat gb hf.PHP_EOL
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/kpLPO on line 21
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
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/kpLPO 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/kpLPO on line 21
Process exited with code 255.

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211.83 ms | 401 KiB | 311 Q