How to generate automatically an alphabetic structure of directories wih PHP (A to Z)

Recently while working on a project that required alphabetic indexation, a very trivial problem showed up asking to myself how to automatize the creation of a structure of directory that contains a folder named as every character of the alphabet. Obviously, i was not going to create manually the dictionary from A to Z knowing that PHP offers a method, namely range, that allows me to create an array containing a range of elements providing the start and the end of the sequence.

The creation of the directories can be easily done with the mkdir method, so creating a variable that contains the created range, you can iterate over it with a foreach statement, creating every directory in the specified directory:

<?php

// generate array with the characters from the alphabet 
// A to Z
$alphabet = range("a", "z");
        
// Iterate over every character and create a directory with the name of the current character
foreach($alphabet as $character){
    mkdir("./" . $character);
}

We created them in the current directory, where the script runs. So after its execution, you will find a structure of directories named just like the alphabet:

.
├── a
├── b
├── c
├── d
├── e
├── f
├── g
├── h
├── i
├── j
├── k
├── l
├── m
├── n
├── o
├── p
├── q
├── r
├── s
├── t
├── u
├── v
├── w
├── x
├── y
└── z

Happy coding !