[PHP] Returning reference problem

[Jon]

Starting over since my last thread had too little effort put in it.  I
have this script that should create a multi-demensional array that would
resemble a directory structure.  The problem is that after adding one
element to a "folder" it appears to be creating a new object instead of
adding another item to the current object.  So there can only be one
"file" or "folder" in the parent "folder" with the exception of the top
level. My entire script is below.

Thanks, Jon

<? 
class dir {

  var $name; 
  var $subdirs; 
  var $files; 
  var $num; 
  var $prio;

  function dir($name,$num,$prio) { 
    $this->name = $name; 
    $this->num = $num; 
    $this->prio = $prio; 
    $this->files = array(); 
    $this->subdirs = array(); 
  }

  function addFile($file) { 
    $this->files[] =& $file; 
    return $file; 
  }

  function &addDir($dir) { 
    $this->subdirs[] =& $dir; 
    return $dir; 
  }

  function &findDir($name) { 
      foreach($this->subdirs as $v){ 
        if($v->name == $name) 
          return $v; 
      } 
      return false; 
  }

  function draw($parent) {


echo('d.add('.$this->num.','.$parent.',"'.$this->name."\",".$this->prio.");\n");

  foreach($this->subdirs as $v) { 
      $v->draw($this->num); 
  }

  foreach($this->files as $v) 
      if(is_object($v)) { 
        echo("d.add(".$v->num.",".$this->num.",
\"".$v->name."\",".$v->prio.");\n"); 
      } 
  } 
}


class file {

  var $name; 
  var $prio; 
  var $size; 
  var $num;

  function file($name,$num,$size,$prio) { 
    $this->name = $name; 
    $this->num = $num; 
    $this->size = $size; 
    $this->prio = $prio;

  }

} 
$arFiles = array 
  ( 
  0 => array 
    ( 
    'path' => array 
      ( 
      0 => 'folder1', 
      1 => 'subfolder1', 
      2 => 'file1.ext' 
      ), 
    'length' => 5464, 
    'size' => 8765 
    ), 
  1 => array 
    ( 
    'path' => array 
      ( 
      0 => 'folder1', 
      1 => 'subfolder1', 
      2 => 'file2.ext' 
      ), 
    'length' => 5464, 
    'size' => 8765 
    ), 
  2 => array 
    ( 
    'path' => array 
      ( 
      0 => 'folder1', 
      1 => 'subfolder2', 
      2 => 'file1.ext' 
      ), 
    'length' => 5464, 
    'size' => 8765 
    ), 
  3 => array 
    ( 
    'path' => array 
      ( 
      0 => 'folder2', 
      1 => 'subfolder1', 
      2 => 'file1.ext' 
      ), 
    'length' => 5464, 
    'size' => 8765 
    ) 
  ); 
$prio = array(); 
      for($i=0;$i<count($arFiles);$i++) 
         $prio[$i] = -1;

 $dirnum = count($arFiles); 
 $tree = new dir("/",$dirnum,isset($prio[$dirnum])?$prio[$dirnum]:-1);

 foreach( $arFiles as $filenum => $file) { 
      $depth = count($file['path']); 
      $branch =& $tree; 
      for($i=0; $i < $depth; $i++){ 
        if ($i != $depth-1){ 
          $d =& $branch->findDir($file['path'][$i]); 
echo "<BR><B>Tree after find dir:</B>"; 
print_r($tree); 
          if($d) 
            $branch =& $d; 
          else{ 
            $dirnum++; 
            $d =& $branch->addDir(new dir($file['path'][$i], $dirnum,
(isset($prio[$dirnum])?$prio[$dirnum]:-1))); 
echo "<BR><B>Tree after add dir:</B>"; 
print_r($tree); 
            $branch =& $d; 
          } 
        }else{ 
          $branch->addFile(new
file($file['path'][$i]." (".$file['length'].")",$filenum,$file['size'],
$prio[$filenum]));

echo "<BR><B>Tree after add file:</B>"; 
print_r($tree);} 
      } 
    } 
$tree->draw(-1); 
?>

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