| --TEST-- | |
| Basic arrow function functionality check | |
| --FILE-- | |
| <?php | |
| $foo = fn() => 1; | |
| var_dump($foo()); | |
| $foo = fn($x) => $x; | |
| var_dump($foo(2)); | |
| $foo = fn($x, $y) => $x + $y; | |
| var_dump($foo(1, 2)); | |
| // Closing over $var | |
| $var = 4; | |
| $foo = fn() => $var; | |
| var_dump($foo()); | |
| // Not closing over $var, it's a parameter | |
| $foo = fn($var) => $var; | |
| var_dump($foo(5)); | |
| // Close over $var by-value, not by-reference | |
| $var = 5; | |
| $foo = fn() => ++$var; | |
| var_dump($foo()); | |
| var_dump($var); | |
| // Nested arrow functions closing over variable | |
| $var = 6; | |
| var_dump((fn() => fn() => $var)()()); | |
| var_dump((fn() => function() use($var) { return $var; })()()); | |
| ?> | |
| --EXPECT-- | |
| int(1) | |
| int(2) | |
| int(3) | |
| int(4) | |
| int(5) | |
| int(6) | |
| int(5) | |
| int(6) | |
| int(6) | |