PHP mysqli类

 1 <?php
 2     header("content-type:text/html;charset=utf-8");
 3     $conn = new mysqli("localhost","root","root","test"); //ip、username、password、dbname
 4     $conn->query("set names utf8");    //设置编码
 5     
 6     $sql = "SELECT * FROM TEST";
 7     $result = $conn->query($sql);
 8     
 9     while ($row = $result->fetch_assoc()) {
10         echo $row["name"];
11         echo "<br/>";
12     }
13     while ($row = $result->fetch_row()) {
14         echo $row[0];
15         echo "<br/>";
16     }
17     
18     $sql = "INSERT INTO TEST(id) VALUES(2)";
19     $conn->query($sql);
20     if($conn->affected_rows>0) {
21         echo $conn->insert_id;
22     } else {
23         echo -1;
24     }
25     
26     $conn->autocommit(FALSE); //默认是自动提交的，设置为不自动提交，才可以使用事务
27     $sql1 = ".....";
28     $sql2 = ".....";
29     $conn->query($sql1);
30     $conn->query($sql2);
31     if(!$conn->errno) {
32         $conn->commit();
33     } else {
34         $conn->rollback();
35     }
36 
37 ?>