Короткие функции: all, any, chunk, deepFlatten, drop, findLast, findLastIndex, flatten, groupBy, hasDuplicates, head, last, pluck, pull, reject, remove, tail, take, without, average, factorial, fibonacci, gcd, isEven, isPrime, lcm, median, endsWith, firstStringBetween, isAnagram, isLowerCase, isUpperCase, palindrome, startsWith и др.

Пример, получение последнего элемента массива:

function findLast($items, $func)
{
    $filteredItems = array_filter($items, $func);
    return array_pop($filteredItems);
}

https://github.com/appzcoder/30-seconds-of-php-code