550 Permission Denied (Opgelost)

<?
//De functie 
function unpackZip($dir,$file) {
   if ($zip = zip_open($dir.$file.".zip")) {
     if ($zip) {
       mkdir($dir.$file);
       while ($zip_entry = zip_read($zip)) {
         if (zip_entry_open($zip,$zip_entry,"r")) {
           $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
           $dir_name = dirname(zip_entry_name($zip_entry));
           if ($dir_name != ".") {
             $dir_op = $dir.$file."/";
               foreach ( explode("/",$dir_name) as $k) {
                 $dir_op = $dir_op . $k;
                 if (is_file($dir_op)) unlink($dir_op);
                 if (!is_dir($dir_op)) mkdir($dir_op);
                 $dir_op = $dir_op . "/" ;
                 }
               }
           $fp=fopen($dir.$file."/".zip_entry_name($zip_entry),"w");
           fwrite($fp,$buf);
           zip_entry_close($zip_entry);
       } else
           return false;
       }
       zip_close($zip);
     }
  } else
     return false;

  return true;
}

<?
//De functie 
function unpackZip($dir,$file) {
   if ($zip = zip_open($dir.$file.".zip")) {
     if ($zip) {
       mkdir($dir.$file);
       while ($zip_entry = zip_read($zip)) {
         if (zip_entry_open($zip,$zip_entry,"r")) {
           $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
           $dir_name = dirname(zip_entry_name($zip_entry));
           if ($dir_name != ".") {
             $dir_op = $dir.$file."/";
               foreach ( explode("/",$dir_name) as $k) {
                 $dir_op = $dir_op . $k;
                 if (is_file($dir_op)) unlink($dir_op);
                 if (!is_dir($dir_op)) mkdir($dir_op);
                 $dir_op = $dir_op . "/" ;
                 }
               }
           $fp=fopen($dir.$file."/".zip_entry_name($zip_entry),"w");
           fwrite($fp,$buf);
           zip_entry_close($zip_entry);
       } else
           return false;
       }
       zip_close($zip);
     }
  } else
     return false;
 
  return true;
}