Reading Directory Contents in PHP

The scandir function allows you to view the contents of a directory and get an array of the names of the files and subfolders in it. The function takes the file path as a parameter.

Let's assume we have a directory dir for example. Let's look at its contents:

<?php
	$files = scandir('dir');
	var_dump($files);
?>

In the result array, the scandir function will also show the presence of directories with the names ".." and ".". Technically, the first name corresponds to a link to the parent directory, and the second - to the current one.

It's better to remove these names from the result array. This is done in the following way:

<?php
	$files = scandir('dir');
	$files = array_diff($files, ['..', '.']); 
	var_dump($files);
?>

Can be simplified:

<?php
	$files = array_diff(scandir('dir'), ['..', '.']); 
	var_dump($files);
?>

Let there be a directory dir in the root of your site, and some text files in it. Display a column of the names of these files.

Let there be a directory dir in the root of your site, and some text files in it. Loop through these files and output their texts to the browser.

Let there be a directory dir in the root of your site, and some text files in it. Loop through these files, open each one, and write an exclamation mark at the end.