3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php // int isn't a reserved word, right? // So this should work fine! const string = 7; // Let's try using it! var_dump(string); /* 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 5.4.0 - 5.4.30
Parse error: syntax error, unexpected '(string)' (string) (T_STRING_CAST) in /in/5Xp96 on line 8
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_STRING_CAST in /in/5Xp96 on line 8
Process exited with code 255.