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<?hh // Hack functions are annotated with types. function my_negation(bool $x): bool { return !$x; } // FIXME: annotate this function parameter // and return with the type 'int'. function add_one(int $x): int { return $x+1; } echo add_one(3);
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.32, 7.2.29 - 7.2.33, 7.3.16 - 7.3.31, 7.4.3 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<?hh // Hack functions are annotated with types. function my_negation(bool $x): bool { return !$x; } // FIXME: annotate this function parameter // and return with the type 'int'. function add_one(int $x): int { return $x+1; } echo add_one(3);
Output for 8.0.13
Parse error: syntax error, unexpected token "function" in /in/kkiZt on line 4
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 7.4.33
Parse error: syntax error, unexpected 'function' (T_FUNCTION) in /in/kkiZt on line 4
Process exited with code 255.

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