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<?php class FakeStringIntTuple { private $data = []; public function returnsCallable() { return $this; } public function __invoke(string $a, int $b) { $this->data[] = [$a, $b]; return $this; } } (new FakeStringIntTuple())('foo', 123); $a = new FakeStringIntTuple(); $a->returnsCallable()('bar', 456); $tuple = (new FakeStringIntTuple()) ('foo', 123) ('bar', 456) ('baz', 789); var_dump($tuple);
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
object(FakeStringIntTuple)#2 (1) { ["data":"FakeStringIntTuple":private]=> array(3) { [0]=> array(2) { [0]=> string(3) "foo" [1]=> int(123) } [1]=> array(2) { [0]=> string(3) "bar" [1]=> int(456) } [2]=> array(2) { [0]=> string(3) "baz" [1]=> int(789) } } }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 object(FakeStringIntTuple)#2 (1) { ["data":"FakeStringIntTuple":private]=> array(3) { [0]=> array(2) { [0]=> string(3) "foo" [1]=> int(123) } [1]=> array(2) { [0]=> string(3) "bar" [1]=> int(456) } [2]=> array(2) { [0]=> string(3) "baz" [1]=> int(789) } } }
Output for 5.6.0 - 5.6.40
Parse error: syntax error, unexpected '(' in /in/4N9if on line 16
Process exited with code 255.

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