Загрузка изображений из фронтенда

$output = true;
$counter = 1;
 $ext_array = array('jpg', 'png', 'gif', 'JPG', 'mp3');
$mydir = $modx->user->get('id');
$uploadpath = 'assets/uploads/'.$mydir.'/';
$target_path = $modx->config['base_path'] . $uploadpath;
$submittedfiles = array_keys($_FILES);
 
foreach ($submittedfiles as $sf) {
 
    $filename = basename( $_FILES[$sf]['name'] );
 
    $ext = pathinfo($filename, PATHINFO_EXTENSION);
    $ext = mb_strtolower($ext); // case insensitive
 
    if($filename != '') {
        if(in_array($ext, $ext_array)) {
            $filename = $counter . '.' . $ext; 
            $filename = str_replace(' ', '_', $filename); // spaces to underscores
            $filename = date("Y-m-d_G-i-s_") . $filename; // add date & time
             
            $myTarget = $target_path . $filename;
             
            mkdir($target_path, 0755, true);
             
            if(move_uploaded_file($_FILES[$sf]['tmp_name'], $myTarget)) {
        		$myFile = $uploadpath . $filename;
                $hook->setValue($sf,$myFile);
                if (!chmod($myTarget, 0644)) { /*some debug function*/ }
                 
            } else {
                $errorMsg = 'Ошибка с загрузкой изображения';
                $hook->addError($sf, $errorMsg);
                $output = false;
            }
        } else {
            $errorMsg = 'Type of file not allowed.';
            $hook->addError($sf, $errorMsg);
            $output = false;
        }
    } else {
        $hook->setValue($sf, '');
    }
$counter = $counter + 1;
}
$tvar = $modx->newObject('modTemplateVarResource', array('contentid' => $id, 'tmplvarid' => $tv));
$tvar->set('value', $output);
$tvar->save();

$modx->runSnippet('loadImg',array('id'=>$newResource['id'], 'tv' => 8, 'value' => $img));