main页面(主页面)
<table 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 $db = new MySQLi("localhost","root","","mydb"); if(mysqli_connect_error()){ die("连接失败"); } $sql = "select * from Info"; $result = $db->query($sql); $attr = $result->fetch_all(); foreach($attr as $v) { $sex = $v[2]? '男':'女'; //三元运算符判断性别 $sql = "select Name from Nation where Code ='$v[3]'"; $result = $db ->query($sql); $attr = $result->fetch_assoc(); echo "<tr> <td>{$v[0]}</td> <td>{$v[1]}</td> <td>{$sex}</td> <td>{$attr['Name']}</td> <td>{$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> <div> <a href="https://www.jb51.net/Add.php" >添加数据</a> </div>
Add(添加数据页面)
<h1>添加数据</h1> <form action="AddChuLi.php" method="post"> <div>代号：<input type="text" /></div> <div>姓名：<input type="text" /></div> <div>性别： <input type="radio" value="男" />男 <input type="radio" value="女" />女 </div> <div>民族: <select> <?php $db = new MySQLi("localhost","root","","mydb"); if(mysqli_connect_error()){ die("连接失败"); } $sql = "select * from Nation"; $r = $db->query($sql); $att = $r->fetch_all(); foreach($att as $v) { echo "<option value='{$v[0]}'>{$v[1]}</option>"; } ?> </select> </div> <div>生日：<input type="text" /></div> <div><input type="submit" value="添加数据" /></div> </form>
AddChuLi页面（添加数据处理页面）
<?php $code = $_POST["code"]; $name = $_POST["name"]; $sex = $_POST["sex"]; $s = 1; if($sex =="女") { $s=0; } $nation = $_POST["nation"]; $birthday = $_POST["birthday"]; $db = new MySQLi("localhost","root","","mydb"); if(mysqli_connect_error()){ die("连接失败"); } $sql = "insert into Info values('{$code}','{$name}','{$s}','{$nation}','{$birthday}')"; //添加数据语句 $result = $db->query($sql); if($result) { header("location:main.php"); //php跳转页面方式 } else { echo "添加失败！"; }
DeleteChuLi页面（删除数据处理页面）
<?php $code = $_GET["code"]; $db = new MySQLi("localhost","root","","mydb"); if(mysqli_connect_error()){ die("连接失败"); } $sql = "delete from Info where Code ='{$code}'"; //删除语句 $r = $db->query($sql); if($r) { header("location:main.php"); } else { echo "删除失败！"; }
Update页面（修改数据页面）
<h1>修改数据</h1> <?php $code = $_GET["code"]; $db = new MySQLi("localhost","root","","mydb"); if(mysqli_connect_error()){ die("连接失败"); } $sql1 = "select * from Info where Code='{$code}'"; $r1 = $db->query($sql1); $att1 = $r1->fetch_row(); ?> <form action="UpdateChuLi.php" method="post"> <div>代号：<input type="hidden" value="<?php echo $att1[0] ?>" /></div> <div>姓名：<input type="text" value="<?php echo $att1[1] ?>" /></div> <div>性别： <input type="radio" value="男" <?php echo $att1[2] ? "checked='checked'" : ""; ?> />男 <input type="radio" value="女" <?php echo $att1[2] ? "" : "checked='checked'"; ?> />女 </div> <div>民族: <select> <?php $db = new MySQLi("localhost","root","","mydb"); if(mysqli_connect_error()){ die("连接失败"); } $sql = "select * from Nation"; //查询nation一组数据 $r = $db->query($sql); $att = $r->fetch_all(); foreach($att as $v) { if($att1[3]==$v[0]) { echo "<option value='{$v[0]}' selected='selectec' >{$v[1]}</option>"; } else { echo "<option value='{$v[0]}'>{$v[1]}</option>"; } } ?> </select> </div> <div>生日：<input type="text" value="<?php echo $att1[4] ?>"/></div> <div><input type="submit" value="修改数据" /></div> </form>
ateChuLi页面（修改数据处理页面）
<?php $code = $_POST["code"]; $name = $_POST["name"]; $sex = $_POST["sex"]; $s=1; if($sex=="女") { $s=0; } $nation = $_POST["nation"]; $birthday = $_POST["birthday"]; $db = new MySQLi("localhost","root","","mydb"); if(mysqli_connect_error()){ die("连接失败"); } $sql = "update Info set,Sex={$s},Nation='{$nation}',Birthday='{$birthday}' where Code='{$code}'"; //修改数据语句 $r = $db->query($sql); if($r) { header("location:main.php"); } else { echo "修改失败！"; }