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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 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])]; // $v is some kind of weird array var_dump('key:::::'.$key); $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]); */ function caesar($str, $n) { $ret = ""; for($i = 0, $l = strlen($str); $i < $l; ++$i) { $c = ord($str[$i]); if (97 <= $c && $c < 123) { $ret.= chr(($c + $n + 7) % 26 + 97); } else if(65 <= $c && $c < 91) { $ret.= chr(($c + $n + 13) % 26 + 65); } else { $ret.= $str[$i]; } } return $ret; } $array = (array) $test; reset($array); $first_key = key($array); print_r($array[$first_key]); $secret = caesar($array[$first_key],13); //print_r('the secret is:'.$secret); //$test->__set($secret , $secret[$secret]['yum']); $test->__set('secret' , $secret[$secret[$secret]]); // end editing here echo $test->run();
Output for 7.0.0 - 7.1.0
Nyy lbhe Onfr ner orybat gb hf. Warning: Illegal string offset 'All your Base are belong to us.' in /in/Mdig0 on line 113 Warning: Illegal string offset 'A' in /in/Mdig0 on line 113 Warning: Illegal string offset 'A' in /in/Mdig0 on line 33 Warning: Illegal string offset 'A' in /in/Mdig0 on line 33 string(9) "key:::::A" Fatal error: Uncaught Error: Call to undefined function A() in /in/Mdig0:35 Stack trace: #0 /in/Mdig0(113): Test->__set('secret', 'A') #1 {main} thrown in /in/Mdig0 on line 35
Process exited with code 255.
Output for 5.0.0 - 5.3.29, hhvm-3.10.0 - 3.12.0
Nyy lbhe Onfr ner orybat gb hf.string(9) "key:::::A" Fatal error: Call to undefined function A() in /in/Mdig0 on line 35
Process exited with code 255.
Output for 5.4.0 - 5.6.28
Nyy lbhe Onfr ner orybat gb hf. Warning: Illegal string offset 'All your Base are belong to us.' in /in/Mdig0 on line 113 Warning: Illegal string offset 'A' in /in/Mdig0 on line 113 Warning: Illegal string offset 'A' in /in/Mdig0 on line 33 Warning: Illegal string offset 'A' in /in/Mdig0 on line 33 string(9) "key:::::A" Fatal error: Call to undefined function A() in /in/Mdig0 on line 35
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/Mdig0 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/Mdig0 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/Mdig0 on line 21
Process exited with code 255.