run code in 200+ php & hhvm versions
Bugs & Features
<?php // int isn't a reserved word, right? // So this should work fine! const int = 7; /* Wait, what? A parse error? Why, you might ask? (int) is a special case in the lexer. Turns out that casts are lexed specially. Why? Probably to stop the type names being reserved words... that worked out spectacularly, didn't it? The best bit, though, is that this has been around since PHP 3, so it's most likely the fault of Zeev Suraski or Andi Gutmans. Good job. */
Output for 5.3.0 - 7.2.0