A Trick With Keys in PHP
It is not very convenient to assign keys to all elements
just so that the numbering starts not from zero,
but from one. Fortunately, in reality, it is enough
to assign the key 1 to the first element,
and then PHP will automatically assign the
keys in order.
Let's try:
<?php
$arr = [1 => 'a', 'b', 'c', 'd'];
echo $arr[1]; // outputs 'a'
echo $arr[2]; // outputs 'b'
echo $arr[3]; // outputs 'c'
?>
Create an array with the names of the months. Let
January have the key 1 in it.
