Implode directory listing into a string

[matt6805]

So I found this bit of code:

function rec_scandir($dir)
{
	$files = array();
    if ( $handle = opendir($dir) ) {
        while ( ($file = readdir($handle)) !== false ) {
            if ( $file != ".." && $file != "." && $file != "directory_listing.php" ) {
                if ( is_dir($dir . "/" . $file) ) {
                    $files[$file] = rec_scandir($dir . "/" . $file);
                }else {
                    $files[] = $file;
                }
            }
        }
        closedir($handle);
        return $files;
    }
}

$dir = rec_scandir(".");
echo "<pre>";
print_r($dir);
echo "</pre><br><br>";

When dropped into a directory, it searches the directory, lists each folder as a new array (I think), and lists each file within that directory.

Like so:

Array
(
    [Sub_Folder_1] => Array
        (
            [0] => SF-1.gif
            [1] => SF-3.gif
        )

[Sub_Folder_2] => Array
    (
        [0] => bunny.gif
        [1] => cat.gif
        [2] => dog-3.gif
    )

)

What I've been trying to do is implode this array into a string so I can manipulate the data at the variable level. Can't figure out how to do this. I think this is a multi-dimensional array but i'm not sure. Any help would be appreciated.

Thanks,
Matt

[laserlight]

Loop over the array and implode each sub-array and append it to a string (or create a result array and implode that).

That said, are you sure you cannot manipulate the array as you want?

[matt6805]

Laserlight, Thanks for pointing me in the right direction. I've been working on this script based on your post for a few weeks and now I'm 98% there. Just one more road bump 🙂!

I have a string that will sometimes contain one word, and sometimes contain more then one. Now the trick here is, that the string is a directory path, and I need to extract the last part (the folder name).

So:
/user/docs/client1
a new $var needs to hold the value client1

/user/docs/some new client
a new $var needs to hold the value some new client - while keeping the spaces in the string

I'm using a reg expression generator to strip out the first part of the URL, because I just need the last directory in the path. That's working fine but only extracts on word:

$location = "/user/docs/some new client"  

  $re1='.*?'; # Non-greedy match on filler
  $re2='(?:[a-z][a-z0-9_]*)'; # Uninteresting: var
  $re3='.*?'; # Non-greedy match on filler
  $re4='(?:[a-z][a-z0-9_]*)'; # Uninteresting: var
  $re5='.*?'; # Non-greedy match on filler
  $re6='((?:[a-z][a-z0-9_]*))'; # Variable Name 1

 if ($c=preg_match_all ("/".$re1.$re2.$re3.$re4.$re5.$re6."/is", $location, $matches))
 {
      $var1=$matches[1][0];
   print $var;
 }

The problem is this code only extracts the word 'client'. ($var = "some"😉

I tried this code:

$location = str_replace(' ', '', $location);

Which runs multiple words together. That sort of solves the problem but I need to have those spaces in there for another part of the script to work.

Can you suggest what I might do? Thanks for your help.

Regards,
Matt

[laserlight]

I'm using a reg expression generator to strip out the first part of the URL, because I just need the last directory in the path.

Be careful here: a URL and a directory path are two different things.

The problem here is that I do not know what exactly are your requirements. If I wanted to extract the last directory name from the directory path '/user/docs/some new client', I would write:

<?php
$path = '/user/docs/some new client';
$names = explode('/', $path);
if (count($names) > 0) {
    echo $names[count($names) - 1];
} else {
    echo 'Error: directory path is empty.';
}
?>

[matt6805]

Awesome! I got it working. I'm sure I'll have one or two more questions as I'm wrapping this up. Thanks for all your help!

Regards,
Matt

[nrg_alpha]

laserlight;10888691 wrote:

If I wanted to extract the last directory name from the directory path '/user/docs/some new client', I would write:

<?php
$path = '/user/docs/some new client';
$names = explode('/', $path);
if (count($names) > 0) {
    echo $names[count($names) - 1];
} else {
    echo 'Error: directory path is empty.';
}
?>

Another subtle alternative:

$path = '/user/docs/some new client';
$pathArray = explode('/', $path);
echo (count($pathArray) > 1)? end($pathArray): 'Error: directory path is empty.';