<?php$array = range ( "c", // mixed $start "a", // mixed $end // [int $step = 1]);?>
$array = [ 0 => 'c', 1 => 'b', 2 => 'a',]
[ 0 => 'c', 1 => 'b', 2 => 'a',]
#1
range
(0, 12)
#2
(0, 100, 10)
#3
("a", "i")
#4
("c", "a")