Question

I’m trying to figure out how to use this directory_map function in CodeIgniter.
See the manual for more details here: http://codeigniter.com/user_guide/helpers/directory_helper.html

Here is what I have working (kind of) and the result bellow:

$this->load->helper('directory');
$map = directory_map('textfiles/');

$index = '';

foreach ($map as $dir => $file) {
  $idx .= "<p> dir: {$dir} </p> <p> file: {$file} </p>";
} #foreach

return $idx;

My testing environment directory and files structure:

one [directory]
  subone [sub-directory]
    testsubone.txt [file-in-sub-directory]
  testone.txt [file-in-directory-one]
three [directory]
  testthree.txt [file-in-directory-three]
two [directory]
  testing [sub-directory]
    testagain.txt [file-in-sub-directory-testing]
  test.txt [file-in-directory-testing]
test.txt [file]

This is the output result I have in my view:

dir: 0
dir: two
file: Array
dir: three
file: Array
dir: 1
file: test.txt
dir: one
file: Array

As you can see in this result that not all directories or files are listed, some are showing up as an array.

There is also something called “get_filenames” function in file helper. Maybe it can be used somehow with directory_map.

Also, I get this following errors:

A PHP Error was encountered
Severity: Notice
Message: Array to string conversion
Filename: welcome.php
Line Number: #

Any help will be greatly appreceated. Thank you =)

Answer 1

You’re issue is that you’re trying to print out a multi dimensionnal array.

You should try doing this instead :
With depth count http://codepad.org/y2qE59XS

$map = directory_map("./textfiles/");

function print_dir($in,$depth)
{
    foreach ($in as $k => $v)
    {
        if (!is_array($v))
            echo "<p>",str_repeat("&nbsp;&nbsp;&nbsp;",$depth)," ",$v," [file]</p>";
        else
            echo "<p>",str_repeat("&nbsp;&nbsp;&nbsp;",$depth)," <b>",$k,"</b> [directory]</p>",print_dir($v,$depth+1);
    }
}

print_dir($map,0);

Edit, Another version without depth count: http://codepad.org/SScJqePV

function print_dir($in)
{
    foreach ($in as $k => $v)
    {
        if (!is_array($v))
            echo "[file]: ",$v,"\n";
        else
            echo "[directory]: ",$k,"\n",print_dir($v);
    }
}

print_dir($map);

Please, be more specific with the output you want.

Edit on Comment
This one keeps the path track http://codepad.org/AYDIfLqW

function print_dir($in,$path)
{
    foreach ($in as $k => $v)
    {
        if (!is_array($v))
            echo "[file]: ",$path,$v,"\n";
        else
            echo "[directory]: ",$path,$k,"\n",print_dir($v,$path.$k.DIRECTORY_SEPARATOR);
    }
}

print_dir($map,'');

Last Edit
Returning function http://codepad.org/PEG0yuCr

function print_dir($in,$path)
{
    $buff = '';
    foreach ($in as $k => $v)
    {
        if (!is_array($v))
            $buff .= "[file]: ".$path.$v."\n";
        else
            $buff .= "[directory]: ".$path.$k."\n".print_dir($v,$path.$k.DIRECTORY_SEPARATOR);
    }
    return $buff;
}