tags:

views:

117

answers:

3

How to get the file names inside a directory using PHP?

I couldn't find the relevant command using Google, so I hope that this question will help those who ire asking along the similar lines.

+10  A: 

There's a lot of ways. The older way is scandir but DirectoryIterator is probably the best way.

There's also readdir (to be used with opendir) and glob.

Here are some examples on how to use each one to print all the files in the current directory:

DirectoryIterator usage: (recommended)

foreach (new DirectoryIterator('.') as $file) {
    if($file->isDot()) continue;
    print $file->getFilename() . '<br>';
}

scandir usage:

$files = scandir('.');
foreach($files as $file) {
    if($file == '.' || $file == '..') continue;
    print $file . '<br>';
}

opendir and readdir usage:

if ($handle = opendir('.')) {
    while (false !== ($file = readdir($handle))) {
        if($file == '.' || $file == '..') continue;
        print $file . '<br>';
    }
    closedir($handle);
}

glob usage:

foreach (glob("*") as $file) {
    if($file == '.' || $file == '..') continue;
    print $file . '<br>';
}

As mentioned in the comments, glob is nice because the asterisk I used there can actually be used to do matches on the files, so glob('*.txt') would get you all the text files in the folder and glob('image_*') would get you all files that start with image_

Paolo Bergantino
One advantage of glob is you can filter files easily, for example `glob('*.txt')` will list all text files.
DisgruntledGoat
Is there a performance concern with any of these methods?
EvilChookie
@EvilChookie: The only thing I can think of is that glob and scandir load the entire file structure into memory automatically, which is just something you should be aware of. Not sure about anything else.
Paolo Bergantino
A: 

The old way would be:

<?php
    $path = realpath('.'); // put in your path here
    $dir_handle = @opendir($path) or die("Unable to open $path");
    $directories = array();
    while ($file = readdir($dir_handle)) 
     $directories[] = $file;
    closedir($dir_handle);
?>

As already mentioned the directory iterator might be the better way for PHP 5.

Daff