PHPmysqli的 其他函数 从数据库中读出数据并且打印出来

 <?php

 // 认识其他mysqli其他函数
 header( 'Content-Type:text/html;charset=utf-8 ');
 require 'prepareSrarment.php';
 $mysqli=new mysqli("localhost", "root", "root", "user1", 3306);
 $mysqli->set_charset("utf8");
 $sql="select *from user1";
 $res=$mysqli->query( $sql);
 echo $res->field_count;//列数
 echo  $res->num_rows;//行数
 //从$res取出
 echo "<table border='1px solid #fcc'><tr>";
 while ($field=$res->fetch_field()){
     echo "<th>{$field->name}</th>";

 }
 echo "</tr>";
 echo "<tr>";
 while ($row=$res->fetch_row())
 {
     foreach ( $row as $key=>$val)
     {
         echo "<td>{$val}</td>";
     }
     echo "</tr>";
 }

 echo "</table>";

 ?>