<?php

//連接數(shù)據(jù)庫

mysql_connect('127.0.0.1', 'code1', '');

mysql_select_db('code1');

mysql_query("set names 'utf8'");

//預設數(shù)據(jù)以便進行更新操作

mysql_query("insert into user(name, age, class) values('王二', 19, '高三五班')");

$id = mysql_insert_id();

//在這里更新id為$id的行的名字為李白

$sql = "update user set name='李白' where id=$id";

mysql_query($sql);

//輸出更新數(shù)據(jù)條數(shù)

echo '數(shù)據(jù)更新行數(shù)：'.mysql_affected_rows();

mysql_query("delete from user where id='$id'");