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run code in 150+ php & hhvm versions
Bugs & Features
<?php $sum = null; // global variable function outer() { global $sum; $hundred_more = 100; $sum = function ($a, $b) { return $a + $b + (++$hundred_more); }; echo $hundred_more; } outer(); // define sum at the global scope and print 100 echo($sum(5, 10)); // 116 echo($sum(5, 10)); // 117 outer(); // redefine sum at the global scope and print 100 echo($sum(5, 10)); // 116 echo($sum(5, 10)); // 117
based on m8Vf5
Output for 5.3.0 - 7.1.0
100 Notice: Undefined variable: hundred_more in /in/HuI5d on line 9 16 Notice: Undefined variable: hundred_more in /in/HuI5d on line 9 16100 Notice: Undefined variable: hundred_more in /in/HuI5d on line 9 16 Notice: Undefined variable: hundred_more in /in/HuI5d on line 9 16
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/HuI5d on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/HuI5d on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/HuI5d on line 8
Process exited with code 255.