Online PHP editor | output for 3mAJV

@ 2018-03-06T21:20:34Z

<?php

class FakeStringIntTuple {
    private $data = [];
    
    public function returnsCallable() {
        return $this;
    }
    
    public function __invoke(string $a, int $b) {
        $this->data[] = [$a, $b];
        return $this;
    }
}

$tuple = (new FakeStringIntTuple())('foo', 123);
var_dump($tuple);

$tuple = new FakeStringIntTuple();
$tuple->returnsCallable()('bar', 456);
var_dump($tuple);

$tuple = (new FakeStringIntTuple())
  ('foo', 123)
  ('bar', 456)
  ('baz', 789);
var_dump($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 - 8.1.32, 8.2.0 - 8.2.28, 8.3.0 - 8.3.19, 8.4.1 - 8.4.6: object(FakeStringIntTuple)#1 (1) { ["data":"FakeStringIntTuple":private]=> array(1) { [0]=> array(2) { [0]=> string(3) "foo" [1]=> int(123) } } } object(FakeStringIntTuple)#2 (1) { ["data":"FakeStringIntTuple":private]=> array(1) { [0]=> array(2) { [0]=> string(3) "bar" [1]=> int(456) } } } object(FakeStringIntTuple)#1 (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/3mAJV on line 16
Process exited with code 255.

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