Question

I want to build a Json output to list folder structure inside ExtJS tree panel. The structure should be the equivalent of this array in Json:

Array
(
    [text] => .
    [children] => Array
        (
            [0] => Array
                (
                    [text] => files
                    [children] => 
                )

            [1] => Array
                (
                    [text] => folder 1
                    [children] => 
                )

            [2] => Array
                (
                    [text] => New directory
                    [children] => array(
                        [0] => Array
                            (
                                [text] => sub_1
                                [children] => array(
                                    [0] => Array
                                        (
                                            [text] => sub_1_1
                                            [children] => 
                                        )
                                    [1] => Array
                                        (
                                            [text] => sub_1_2
                                            [children] => 
                                        )                                    
                                )
                            )
                        [1] => Array
                            (
                                [text] => sub_2
                                [children] => 
                            )                             
                    )
                )    
        )    
)

i made this function which shows the structure by going through PHP Manual and examples

listFolders('../file_uploads/');
function listFolders($dir){
    $dh = scandir($dir);
    echo '<ul>';
    foreach($dh as $folder){
        if($folder != '.' && $folder != '..')
        {
            if(is_dir($dir.'/'.$folder)){
                echo '<li>'.$folder.'</li>';
                listFolders($dir.'/'.$folder);
            }
        }
    }
    echo '</ul>';
}

this outputs the structure

• New directory
• sub_1
• sub_1_1
• sub_1_1_1
• sub_1_2
• sub_2
• files
• folder 1

I want to know how to convert this output to a array (or the Json) like above?

solution

print "<pre>";
print_r(listFolders('../file_uploads/'));

function listFolders($dir)
{
    $dh = scandir($dir);
    $return = array();

    foreach ($dh as $folder) {
        if ($folder != '.' && $folder != '..') {
            if (is_dir($dir . '/' . $folder)) {
                $return[] = array(
                    'text' => $folder,
                    'children' => listFolders($dir . '/' . $folder)
                );
            }
        }
    }
    return $return;
}

Answer 1

Try the following code:

function listFolders($dir)
{
    $dh = scandir($dir);
    $return = array();

    foreach ($dh as $folder) {
        if ($folder != '.' && $folder != '..') {
            if (is_dir($dir . '/' . $folder)) {
                $return[] = array($folder => listFolders($dir . '/' . $folder));
            } else {
                $return[] = $folder;
            }
        }
    }
    return $return;
}

Seems to work for me, not tested properly though.