3v4l.org

run code in 300+ PHP versions simultaneously
<?php class integer { private $value; public function __construct(int $value = 0) { $this->value = $value; } public function __invoke(int ...$value) : int { if (count($value) === 1) $this->value = $value[0]; else throw new Exception('Multiple values given.'); return $this->value; } } $testi = new integer(1); $testi(2);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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 - 8.3.6
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Default value for parameters with a class type hint can only be NULL in /in/S15kL on line 6
Process exited with code 255.
preferences:
169.56 ms | 402 KiB | 183 Q