Read Directory Function

CHASE · 03-11-2008, 09:40 AM

Most of you developing websites or having portfolios, this function may come in use in your PHP endeavors.

Example: Directory Quick Browse Script

Added Note: If you're using anything less than php version 5.0.2, or you're getting an error using the code, add this in as well.

PHP Code:


			
if(!defined('PHP_EOL'))

{

    define('PHP_EOL', (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN' ? "\r\n" : "\n"));

}

And here's the function :)

PHP Code:


			
function read_directory($directory)

{

    if(is_dir($directory))

    {

        echo "<ul>"  . PHP_EOL;

        

        if($handle = @opendir($directory))

        {                    

            while(($file = readdir($handle)) !== false)

            {

                if($file != "." && $file != "..")

                {

                    if(is_dir($directory . DIRECTORY_SEPARATOR . $file))

                    {

                        $directories[] = $file;

                    }

                    else

                    {

                        $files[] = $file;

                    }

                }

            }

            

            if(!empty($directories))

            {

                sort($directories);

                

                foreach($directories as $sub_directory)

                {

                    echo "<li>" . $sub_directory . DIRECTORY_SEPARATOR . "</li>";

                    echo "<ul>";

                    

                    read_directory($directory . DIRECTORY_SEPARATOR . $sub_directory);

                    

                    echo "</ul>";

                }

            }

            

            if(!empty($files))

            {

                sort($files);

                

                foreach($files as $file)

                {

                    echo "<li><a href=\"" . $directory . DIRECTORY_SEPARATOR . $file . "\">" . $file . "</a></li>"  . PHP_EOL;

                }

            }

            

            @closedir($handle);

            echo "</ul>"  . PHP_EOL;

        }

    }

}

To use it, just simply write the following code:

PHP Code:


			
read_directory('portfolio');

Orc · 03-11-2008, 10:49 AM

Theres a better way to escape the two periods

PHP Code:


			

if ($file != ".") continue;

Only problem is you cannot do an else/elseif statement for that condition.

CHASE · 03-11-2008, 10:51 AM

I don't really see how that code is "better"..? It's pretty much the same thing..

Orc · 03-11-2008, 10:53 AM

Quote:

Originally Posted by CHASE

I don't really see how that code is "better"..? It's pretty much the same thing..

It's only one line of code xD

CHASE · 03-11-2008, 10:57 AM

As opposed to two ;) Not much of a difference, but thank you for the pointer :)

Orc · 03-11-2008, 10:59 AM

Quote:

Originally Posted by CHASE

As opposed to two ;) Not much of a difference, but thank you for the pointer :)

No problem, just trying to help. ^_^ and be a little snobby at the same time

Tanax · 03-11-2008, 11:06 AM

Just a friendly tip, check out the glob function

Orc · 03-11-2008, 11:08 AM

Quote:

Originally Posted by Tanax

Just a friendly tip, check out the glob function

I was thinking about that, but I didn't bother posting it xD at least, I thought Wildhoney >.> was going to post hehe

Wildhoney · 03-11-2008, 03:14 PM

Glob! I just fell in love with the glob function as soon as I stumbled across it.

CHASE · 03-11-2008, 10:41 PM

Glob will only return files of a certain extension, and supports only two arguments though.. This does an entire directory + sub directories :D

freenity · 03-11-2008, 11:16 PM

didn't want to create a new thread because the topic is really similar.
I was trying to make a recursive function just to count how many files are in a dir and it's subdirectories:

PHP Code:


			
<?php

$dir = "/var/www/html/";


$files = getfilesnum($dir);


echo $files." files in {$dir} and subdirs<br />";

closedir($dh);


function getfilesnum($d)
{
    $dh = opendir($d);
    $files = 0;
    while ($f = readdir($dh))
    {
        if (filetype($d.$f) == 'file')
        {
            $files++;
        }
        elseif ((filetype($d.$f) == 'dir') && ($f != '.') && ($f != '..'))
        {
            $files += getfilesnum($d.$f);
        }
    }
    return $files;
}

?>

Isn't working :S it doesn't go recursive, don't know why. Any idea??

I saw that CHASE in his code put all the directories in a array and then called the recursive function, but it should work without using the array I think...

Aah I posted twice, please delete it admins :)

CHASE · 03-12-2008, 02:29 AM

I would recommend using the function I built, and then just removing the echos, and having it $var++

That would probably do what you want :)

TlcAndres · 03-12-2008, 09:58 AM

Not to be a stickler but ++$var is faster then $var++

CHASE · 03-12-2008, 10:43 AM

Oh cool, I didn't know that, thanks for the tip.

Salathe · 03-12-2008, 02:15 PM

Quote:

Originally Posted by TlcAndres

Not to be a stickler but ++$var is faster then $var++

By approximately 0.00000004 seconds each time. I'd say it's a moot point in this particular case when accessing the file system is the slowest operation occurring.

Quote:

Originally Posted by CHASE

Glob will only return files of a certain extension, and supports only two arguments though.. This does an entire directory + sub directories :D

glob will return whatever you tell it to return. If you just specify * as the pattern, glob will return all files and directories in the current working directory. It's simple enough to check for directories and go through each recursively, as you do in your own code.

freenity · 03-12-2008, 04:08 PM

Quote:

Originally Posted by CHASE

I would recommend using the function I built, and then just removing the echos, and having it $var++

That would probably do what you want :)

yes, but I want to use my code :)
Just want to know what is wrong there...