<?php function decorate(callable $func): callable { return function (mixed ...$args) use ($func): mixed { echo "Do something before the func call.", PHP_EOL; $result = $func(...$args); echo "Do something after the func call.", PHP_EOL; return $result; }; } // ------------------------------------------------------- $func = function (int $x): void { echo $x, PHP_EOL; }; $func = decorate($func); $func(x: 23);
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