[PHP-HTML] Stmpare Directory-Tree come Select annidata

[marmz]

Ok, fatto.
Ho riadattato la mia funzione in questo modo:

function HTML_Dir_OptionTree($dir, $sel_subpath = '', $root = '',$depth = 0, $parent_last=[]) 
{        
    $children=array();
    $dir=realpath($dir);
    
    if ($root=='')    $root= preg_replace('/\/+/', '/', $dir.'/');
    $list = scandir($dir);
    
    foreach ($list as $obj) if (is_dir($dir.'/'.$obj) && is_readable($dir.'/'.$obj) && !is_link($dir.'/'.$obj) && $obj!=='.' && $obj!=='..') { 
        $item['name']=$obj;
        $item['realpath']=$dir.'/'.$obj;
        $item['subpath'] = preg_replace('/^'. preg_quote($root, '/') . '/', '', $item['realpath']).'/';
        $children[]=$item;    
    }

    foreach ($children as $key => $child)
    {     
        if ($depth>0)
            foreach ($parent_last as $is_last)
                $p_branches.=($is_last ? '     ' : '  │  ' );

        $symbol =  $p_branches.'  '.(($key == (count($children)-1)) ? '└' : '├').'─▸';
        
        $result .= '<option value="'.$child["subpath"].'" '.($child["subpath"]==$sel_subpath ? 'selected':'').'>'.$symbol.$child["name"].'</option>'."\n";
        $parent_last_new=$parent_last; 
        $parent_last_new[]=(($key == (count($children)-1)) ? 1 : 0);
        
        $p_branches='';
        
        $result.=HTML_Dir_OptionTree($child['realpath'], $sel_subpath, $root, $depth+1, $parent_last_new);        
    } 
    return $result ?  $result : null; 

} 

Si usa cosi':
PRIMO parametro ($dir): percorso da visualizzare
SECONDO parametro ($sel_subpath): directory [option] selezionata (richiede SLASH finale).

<style>
   option {font-family:monospace,monospace; font-size:12px}
</style>

<select name="myselect">
   <? echo HTML_Dir_OptionTree('mio/percorso', 'directory/selezionata/'); ?>
</select>

Spero che vi possa essere utile
Allego uno "shot" di esempio