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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>
45 lines
825 B
PHP
45 lines
825 B
PHP
--TEST--
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Arrow functions syntax variations
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--FILE--
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<?php
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// By-reference argument and return
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$var = 1;
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$id = fn&(&$x) => $x;
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$ref =& $id($var);
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$ref++;
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var_dump($var);
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// int argument and return type
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$var = 10;
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$int_fn = fn(int $x): int => $x;
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var_dump($int_fn($var));
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try {
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$int_fn("foo");
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} catch (TypeError $e) {
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echo $e->getMessage(), "\n";
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}
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$varargs = fn(?int... $args): array => $args;
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var_dump($varargs(20, null, 30));
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try {
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$varargs(40, "foo");
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} catch (TypeError $e) {
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echo $e->getMessage(), "\n";
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}
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?>
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--EXPECTF--
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int(2)
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int(10)
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Argument 1 passed to {closure}() must be of the type int, string given, called in %s on line %d
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array(3) {
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[0]=>
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int(20)
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[1]=>
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NULL
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[2]=>
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int(30)
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}
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Argument 2 passed to {closure}() must be of the type int or null, string given, called in %s on line %d
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