请问我哪里错了,输出空白,,数据库里面有数据
<?php
//链接数据库
$host = '172.0.0.1';//地址
$host_database = 'test1';
$link = mysqli_connect($host,$host_database);
mysqli_select_db($link,"test1");//选择数据库
mysqli_query($link,"set name 'utf8'");
//在这里获取一行数据
$sql = "select * from test1_1";
$result = mysqli_query($link,$sql);
$row = mysqli_fetch_array($result);
echo '<pre>';
print_r($row);
echo '</pre>';
echo 123;