PHP 连接数据库并进行增删改查 增加

增加

首先，建立一个主页面（crud.php）

"en">

    "UTF-8">
    


php

$db = new Mysqli("localhost","root","root","student");
!empty(mysqli_connect_error())?die("连接错"):"";

$sql = "select * from student";

$data = $db->query($sql)->fetch_all();

//var_dump($data);

"1">
    php
    foreach ($data as $i){
        if ($i[2] == 1){
            $i[2] = "男";
        }
        elseif ($i[2] == 0){
            $i[2] = "女";
        }
        else{
            $i[2] = "保密";
        }
        echo "";
    }
    ?>

        
ID
        
姓名
        
性别
        
出生年月
        
班级
        
删除
        
修改
    


     
{$i[0]}
{$i[1]}
{$i[2]}
{$i[3]}
{$i[4]}
 删除 
 修改 




"add.php">新增用户

一、增加

1、建立add.php ，插入表单

"en">

    "UTF-8">
    


    
"post" action="addpost.php">
        "text" name="Sno" placeholder="id">

        "text" name="Sname" placeholder="姓名">

        "radio" name="Ssex" value="1" id="man">for="man">男
        "radio" name="Ssex" value="0" id="woman">for="woman">女

        "text" name="Sbirthday" placeholder="出生年月">

        "text" name="Class" placeholder="班级">

        "submit" value="提交">
    

2、在addpost.php里做数据库增加处理

php

$id = $_POST['Sno'];
$name = $_POST['Sname'];
$sex = $_POST['Ssex'];
$birthday = $_POST['Sbirthday'];
$class = $_POST['Class'];

$db = new Mysqli("localhost","root","root","student");
$sql = "insert into student.student VALUES ('{$id}','{$name}','{$sex}','{$birthday}','{$class}',0)";

//var_dump($db->query($sql));
if ($db->query($sql)){
    header("location:crud.php");
}else{
    header("location:add.php");
}

测试一下：

1、主页

2、点击 增加用户  增加内容

3、点击 提交  ，看一下

4、完成    ^-^

 

转载于:https://www.cnblogs.com/little-rock/p/7698086.html