3v4l.org

run code in 300+ PHP versions simultaneously
<?php $closure = fn (string $str) => "hello {$str}"; echo $closure('via regular')."\n\n\n"; echo $closure->__invoke('via __invoke')."\n\n\n"; print_r(get_class_methods($closure));
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
hello via regular hello via __invoke Array ( [0] => bind [1] => bindTo [2] => call [3] => fromCallable )
preferences:
70.88 ms | 407 KiB | 5 Q