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Nikita Popov
f3e5bbe6f3
Per RFC: https://wiki.php.net/rfc/arrow_functions_v2 Co-authored-by: Levi Morrison <levim@php.net> Co-authored-by: Bob Weinand <bobwei9@hotmail.com>
46 lines
707 B
PHP
46 lines
707 B
PHP
--TEST--
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Basic arrow function functionality check
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--FILE--
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<?php
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$foo = fn() => 1;
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var_dump($foo());
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$foo = fn($x) => $x;
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var_dump($foo(2));
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$foo = fn($x, $y) => $x + $y;
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var_dump($foo(1, 2));
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// Closing over $var
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$var = 4;
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$foo = fn() => $var;
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var_dump($foo());
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// Not closing over $var, it's a parameter
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$foo = fn($var) => $var;
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var_dump($foo(5));
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// Close over $var by-value, not by-reference
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$var = 5;
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$foo = fn() => ++$var;
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var_dump($foo());
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var_dump($var);
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// Nested arrow functions closing over variable
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$var = 6;
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var_dump((fn() => fn() => $var)()());
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var_dump((fn() => function() use($var) { return $var; })()());
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?>
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--EXPECT--
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int(1)
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int(2)
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int(3)
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int(4)
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int(5)
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int(6)
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int(5)
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int(6)
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int(6)
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