<select> <?php $db=new MySQLi("localhost","root","3177389","my test"); !mysqli_connect_error() or die("连接失败!"); $sql="select*from Nation"; $result=$db->query($sql); $attr=$result->fetch_all(); for($i=0;$i<count($attr );$i++) { list($code,$name)=$attr[$i]; echo "<option value='{$code}'>{$name}</option>"; } ?> </select>
<?php //造连接对象 $db=new MySQLi("localhost","root","3177389","my test"); //判断是否出错 !mysqli_connect_error()or die ("连接失败!"); //写sql语句 $sql="select *from Info"; //执行sql语句 $result=$db->query($sql); //处理查询数据并显示 echo "<table width='100%' border='1' cellpadding='0' cellpadding='0'>"; echo "<tr><td>代号</td><td>姓名</td><td>性别</td><td>民族</td ><td>生日</td></tr>"; while($row=$result->fetch_row()) { $sex=$row[2]?"男":"女"; $name =ShowNation($db,$row [3]); echo "<tr><td>{$row[0]}</td><td>{$row[1]}</td><td>{$sex}</td><td>{$name}</td ><td>{$row[4]}</td></tr>"; } echo "</table >"; function showNation ($db,$code) { $sql = "select Name from Nation where Code='{$code}'"; $result=$db->query($sql); $jieguo =$result ->fetch_row(); return $jieguo[0]; } ?>
<form action="0324chili.php" method="post"> <div> 用户名: <input type="text" name="zw" /> </div> <div> 密码: <input type="text" name="pwd" /> </div> <div> <input type="submit" value="登录" /> </div> </form>
<?php $uid=$_POST["zw"]; $pwd=$_POST["pwd"]; $db=new MySQLi("localhost","root","3177389","my test"); !mysqli_connect_error()or die ("连接失败!"); $sql="select count(*) from login where username='{$uid}' and password='{$pwd}'"; $resul=$db->query($sql); $attr=$resul->fetch_row(); if($attr[0] == 1) { header("location:zhu.php"); } else { header("location:denglu.php"); }