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@pyldin601
Forked from beberlei/tailrecursion.php
Last active August 18, 2023 11:20
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PHP Tail Recursion
<?php
function tail($fn)
{
$underCall = false;
$pool = [];
return function (...$args) use (&$fn, &$underCall, &$pool) {
$result = null;
$pool[] = $args;
if (!$underCall) {
$underCall = true;
while ($pool) {
$head = array_shift($pool);
$result = $fn(...$head);
}
$underCall = false;
}
return $result;
};
}
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