主页面
<body>
<h1>主页面</h1>
<table width="100%" border="1" cellpadding="0" cellspacing="0">
<tr>
<td>代号</td>
<td>姓名</td>
<td>性别</td>
<td>民族</td>
<td>生日</td>
<td>操作</td>
</tr>
<?php
//造对象
$db = new MySQLi("localhost","root","123","mydb");
//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);
//读取数据
$attr = $result->fetch_all();
//遍历数组，显示
foreach($attr as $v)
{
$sex = $v[2]?"男":"女";
$sql = "select Name from Nation where Code = '{$v[3]}'";
$r = $db->query($sql);
$a = $r->fetch_row();
echo "
<tr>
<td>{$v[0]}</td>
<td>{$v[1]}</td>
<td>{$sex}</td>
<td>{$a[0]}</td>
<td>{$v[4]}</td>
<td><a href='delete.php?code={$v[0]}'>删除</a><a href='update.php?code={$v[0]}'>修改</a></td>
</tr>
";
}
?>
</table>
<a href="add.php">添加数据</a>
</body>
添加
<body> <h1>添加数据</h1> <form action="addchuli.php" method="post"> <div>代号：<input type="text" name="code" /></div> <div>姓名：<input type="text" name="name" /></div> <div>性别：<input type="radio" value="1" name="sex" />男 <input type="radio" value="0" name="sex" />女</div> <div>民族： <select name="nation"> <?php $db = new MySQLi("localhost","root","123","mydb"); $sql = "select * from Nation"; $result = $db->query($sql); $attr = $result->fetch_all(); foreach($attr as $v) { echo "<option value='{$v[0]}'>{$v[1]}</option>"; } ?> </select> </div> <div>生日：<input type="text" name="birthday" /></div> <input type="submit" value="添加" /> </form> <br /> <a href="main.php">返回主页面</a> </body>
<?php $code = $_POST["code"]; $name = $_POST["name"]; $sex = $_POST["sex"]; $nation = $_POST["nation"]; $birthday = $_POST["birthday"]; $db = new MySQLi("localhost","root","123","mydb"); $sql = "insert into Info values('{$code}','{$name}',{$sex},'{$nation}','{$birthday}')"; $r = $db->query($sql); if($r) { header("location:add.php"); } else { echo "添加失败！"; }
删除
<?php $code = $_GET["code"]; $db = new MySQLi("localhost","root","123","mydb"); $sql = "delete from Info where Code = '{$code}'"; if($db->query($sql)) { header("location:main.php"); } else { echo "删除失败！"; }
修改
<body> <h1>修改数据</h1> <?php $code = $_GET["code"]; $db = new MySQLi("localhost","root","123","mydb"); $sql = "select * from Info where Code = '{$code}'"; $result = $db->query($sql); $attr = $result->fetch_row(); ?> <form action="updatechuli.php" method="post"> <div>代号： <input type="text" readonly="readonly" name="code" value="<?php echo $attr[0] ?>" /> </div> <div>姓名： <input type="text" name="name" value="<?php echo $attr[1] ?>" /> </div> <div>性别： <input type="radio" value="1" name="sex" <?php echo $attr[2]?"checked='checked'":""; ?> />男 <input type="radio" value="0" name="sex" <?php echo $attr[2]?"":"checked='checked'"; ?> />女 </div> <div>民族： <select name="nation"> <?php $db = new MySQLi("localhost","root","123","mydb"); $sql = "select * from Nation"; $result = $db->query($sql); $attr1 = $result->fetch_all(); foreach($attr1 as $v) { //判断民族是否选中 if($attr[3] == $v[0]) { echo "<option selected='selected' value='{$v[0]}'>{$v[1]}</option>"; } else { echo "<option value='{$v[0]}'>{$v[1]}</option>"; } } ?> </select> </div> <div>生日： <input type="text" name="birthday" value="<?php echo $attr[4] ?>" /> </div> <input type="submit" value="修改" /> </form> <br /> <a href="main.php">返回主页面</a> </body>
<?php $code = $_POST["code"]; $name = $_POST["name"]; $sex = $_POST["sex"]; $nation = $_POST["nation"]; $birthday = $_POST["birthday"]; $db = new MySQLi("localhost","root","123","mydb"); $sql = "update Info set Name='{$name}',Sex={$sex},Nation='{$nation}',Birthday='{$birthday}' where Code='{$code}' "; $r = $db->query($sql); if($r) { header("location:main.php"); } else { echo "修改失败！"; }