PHP數據庫登陸注冊簡單做法





<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>無標題文檔</title> </head> <body> <h1>注冊</h1> <form action="./zhucechuli0.php" method="post"> <div>用戶名:<input id="yhm" type="text" name="uid" /></div> <div>密碼:<input id="mm" type="text" name="pwd" /></div> <div>姓名:<input type="text" name="name" /></div> <div><input type="submit" name="注冊" onclick="return yanzheng()" /></div> </form> <h1>登陸</h1> <form action="./dengluchuli.php" method="post"> <div>用戶名:<input type="text" name="uid" /></div> <div>密碼:<input type="text" name="pwd" /></div> <div><input type="submit" name="登陸" /></div> </form> </body> </html>

1.做登陸注冊頁面

2.做一個注冊處理PHP

<?php

$uid = $_POST["uid"];
$pwd = $_POST["pwd"];
$name = $_POST["name"];

//1.造連接對象
$db = new MySQLi("localhost","root","212333","ppo");

//2.寫SQL語句
$sql = "insert into login values('{$uid}','{$name}','{$pwd}',0)";

//3.執行
$r = $db->query($sql);

if($r)
{
    echo "注冊成功!";
}
else
{
    echo "注冊失敗!";
}



?>

3.做登陸處理頁面

<?php
$uid = $_POST["uid"];
$pwd = $_POST["pwd"];

//1.造連接對象
$db = new MySQLi("localhost","root","212333","ppo");

//2.寫SQL語句
$sql = "select password from login where username='{$uid}'";

//3.執行
$reslut = $db->query($sql);

//4.取數據
$attr = $reslut->fetch_row();

if($attr[0]==$pwd && !empty($pwd))
{
    echo "登錄成功!";
}
else
{
    echo "登錄失敗!";
}
?>

 




 


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