global block hỗ trợ còn nhiều sai sót mong anh em chỉ giúp

<?php
if (! defined('NV_MAINFILE')) {
    die('Stop!!!');
}
if (! nv_function_exists('nv_block_hotro')) 
{ 	

	function nv_block_hotro_config($module, $data_block, $lang_block){
        global $lang_global, $selectthemes;

        // Find language file
        if (file_exists(NV_ROOTDIR . '/themes/' . $selectthemes . '/language/' . NV_LANG_INTERFACE . '.php')) {
            include NV_ROOTDIR . '/themes/' . $selectthemes . '/language/' . NV_LANG_INTERFACE . '.php';
        }

        $html = '<tr>';
        $html .= '<td><p style="text-align:center">' . $lang_global['hotro_number'] . '</p></td>';
        $html .= '<td><input type="text" class="form-control  w100" name="config_hotro_number" value="' . $data_block['hotro_number'] . '"></td>';
		$html .= '</tr>';
		$dem = $data_block['hotro_number'];
		for ( $i = 1; $i <=$dem; ++$i) {
		$html .= '<tr>';
		$html .='<td >'.$lang_global['hotro_name'].'&nbsp'.$i.'</td>';
		$html .='<td><input type="text" class="form-control w300" name="config_hotro_name'.$i.'" value="&nbsp'.$data_block['hotro_name'.$i].'"></td>';
		$html.='</tr>';
		$html .='<tr><td>'.$lang_global['hotro_bophan'].'&nbsp</td>';
		$html .='<td><select name="hotro_bophan'.$i.'" class="form-control w300">
					<option value="0" selected="selected">Bán Hàng</option>
					<option value="1" >Tư Vấn</option>
					<option value="2" >Chăm Sóc</option>
					</select></td>';			
		$html.='</tr>';
		$html .='<tr ><td>'.$lang_global['hotro_phone'].'&nbsp</td>';
		$html .='<td><input type="text" class="form-control w300" name="config_hotro_phone'.$i.'" value="'.$data_block['hotro_phone'.$i].'"></td>';
		$html.='</tr>';
		$html .='<tr ><td>'.$lang_global['hotro_skype'].'&nbsp</td>';
		$html .='<td><input type="text" class="form-control w300" name="config_hotro_skype'.$i.'" value="'.$data_block['hotro_skype'.$i].'"></td>';
		$html.='</tr>';
		$html .='<tr ><td >'.$lang_global['hotro_email'].'&nbsp</td>';
		$html .='<td><input type="text" class="form-control w300" name="config_hotro_email'.$i.'" value="'.$data_block['hotro_email'.$i].'"></td>';
		$html.='</tr>';
		}
		return $html;
	}	
/*$lang_global['hotro_name'] = 'tên';
$lang_global['hotro_phone'] = 'điện thoại';
$lang_global['hotro_skype'] = 'skype';
$lang_global['hotro_email'] = 'email';*/

	function nv_block_hotro_submit(){
		global $nv_Request;
		$return = array();	
        $return['error'] = array();
		$return['config']= array();
		$return['config']['hotro_number'] = $nv_Request->get_int('config_hotro_number', 'post');
		$dem1 = $nv_Request->get_int('config_hotro_number', 'post');
		for($i=1;$i<=$dem1;++$i){	
		$return['config']['nhanvien'.$i]= array();		
		$return['config']['nhanvien'.$i]['hotro_name'] = $nv_Request->get_title('config_hotro_name'.$i, 'post');
		$return['config']['nhanvien'.$i]['hotro_bophan'] = $nv_Request->get_int('config_hotro_bophan'.$i, 'post',0);
		$return['config']['nhanvien'.$i]['hotro_phone'] = $nv_Request->get_title('config_hotro_phone'.$i, 'post','');
		$return['config']['nhanvien'.$i]['hotro_email'] = $nv_Request->get_title('config_hotro_email'.$i, 'post','');
		$return['config']['nhanvien'.$i]['hotro_skype'] = $nv_Request->get_title('config_hotro_skype'.$i, 'post','');	
		}
		return $return;
	}
	//var_dump($block_config);die();
	function nv_block_hotro($block_config){	

		global $global_config,$lang_global;

        if (file_exists(NV_ROOTDIR . '/themes/' . $global_config['module_theme'] . '/blocks/global.block_hotro.tpl')) {
            $block_theme = $global_config['module_theme'];
        } elseif (file_exists(NV_ROOTDIR . '/themes/' . $global_config['site_theme'] . '/blocks/global.block_hotro.tpl')) {
            $block_theme = $global_config['site_theme'];
        } else {
            $block_theme = 'default';
        }
        $xtpl = new XTemplate('global.block_hotro.tpl', NV_ROOTDIR . '/themes/' . $block_theme . '/blocks');
		$dem=$block_config['hotro_number'];
		for ($i=1;$i<=$dem;$i++)
		{
			$xtpl->assign('DATA',$block_config['nhanvien'.$i]);
			$xtpl->parse('main.loop');
		}
		$xtpl->parse('main');	
		return $xtpl->text('main');

	}

}
//var_dump($global_config);die();
if (defined('NV_SYSTEM')) {
    $content = nv_block_hotro($block_config);
}