- Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
- hi
<?php
class foo {
function bar(callable $callable) {
$callable();
}
function printStr() {
echo "hi";
}
}
$foo = new foo();
$foo->bar(fn() => $foo->printStr());