Best Way to Retrieve File Names in a Directory with a Specified Extension in PHP

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Best way to get files from a dir filtered by certain extension in php

What would be the best way to retrieve file names with a specified extension?

I came up with this solution and it works fine but am wondering if there is a better way.

print_r(array_filter(scandir(dirname(__FILE__)), create_function('$a', 'return (substr($a, -4) == ".php") ? true : false ;')));

I'm expecting a better way in readability and efficiency. What does unit test mean? — Teno, Sep 02 '12 at 17:24
Teno, it's used with Test Driven Development (TDD). By writing tests you, find out of your code is doing it's job. http://www.phpunit.de/manual/3.7/en/automating-tests.html — Wouter Dorgelo, Sep 02 '12 at 17:26
I see thanks. I don't understand why this question got a down vote as complex857 showed a better solution. It's an important question. — Teno, Sep 02 '12 at 17:32
Sometimes a question looking like a duplicate can result on conveying another perspective. So what's wrong with it. We get better information then. — Teno, Sep 02 '12 at 17:54

complex857 · Accepted Answer · 2012-09-02T18:02:10.843

3

I would use glob. Maybe the most simplistic approach to this:

$files = glob( dirname(__FILE__) . '/*.php'); 
$files = array_map('basename', $files);
print_r($files);

edited Sep 02 '12 at 18:02

answered Sep 02 '12 at 17:23

complex857

That's better, simple and easy to understand. I was expecting something like this. – Teno Sep 02 '12 at 17:27
If the file pattern contains a directory path, the retrieved paths becomes file paths as well. How could it be improved to retrieve only file names? – Teno Sep 02 '12 at 17:48
2

@Teno `array_map('basename', $files)` – salathe Sep 02 '12 at 17:51
One problem with it that we cannot pass a parameter to the function, basename. Otherwise, all fine. – Teno Sep 02 '12 at 18:12

1 Answers1