Shuffling Arrays in PHP
Given an array:
<?php
$arr = [1, 2, 3, 4, 5];
?>
Shuffle its elements in random order.
Fill an array with numbers from 1 to 25
using range, and then shuffle
its elements in random order.
Create an array filled with letters from 'a'
to 'z' so that the letters are in random
order and do not repeat.
