from表单连接数据库

先在你想显示的页面中添加表单用

<from action="index1.php" method="post">    //<from action="index1.php是向index1.php发送表单数据    method="post"   post是传递方式

<input type="text" name="name" placeholder="姓名" required="">
<input type="password" name="mima" required=" " placeholder="密码至少6位数"><p></p>
<input type="text" name="xingbie" placeholder="性别" required="">
<input type="text" name="xibu" placeholder="系部" required="">
<input type="text" name="banji" placeholder="班级" required="">
<input type="text" name="tex" placeholder="电话" required="">

<button>确定</button>

<button>取消</button>

</from>

接下来在index1.中写php代码,

include_once("conn/conn.php"); //引入导入数据库

$name=$_POST["name"];
$mima=$_POST["mima"];
$xingbie=$_POST["xingbie"];                        // 括号里面的值对应前端里面name,post用来收集来自于表单的值存储在$...中
$xibu=$_POST["xibu"];
$banji=$_POST["banji"];
$tex=$_POST["tex"];

$sql="INSERT into user (name,mima,xingbie,xibu,banji,tex)values('$name','$mima','$xingbie','$xibu','$banji','$tex')";
$r=mysqli_query($link,$sql);                   ///INSERT into use括号中输入post中括号中的      values输入$..
if ($r) {
echo ("写入成功");
}else{
echo ("失败");
}

在conn中创建一个conn.php固定的css代码

<?php
$host="localhost";
$db_user="root"; //数据库用户
$db_pass=""; //数据库密码
$db_name="sqlclass1"; //数据库
$timezone = "Asia/Shanghai";

$link=mysqli_connect($host,$db_user,$db_pass,$db_name);
mysqli_query($link,"SET names UTF8");

header("Content-Type: text/html; charset=utf-8");
date_default_timezone_set($timezone); //北京时间
?>