PHP實作簡單注冊登錄 詳細全部代碼 先看演示~
示例圖：
Ps.本人有點懶哈~ 就輸出個成功算了吧~
PHP實作登錄注冊
- index.php (首頁)
- login.php (登錄)
- register.php (注冊)
代碼里面注釋寫很詳細了哦~ 廢話不多說 直接上代碼~
index.php
代碼：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Zhe - 注冊登錄</title>
<link rel="stylesheet" type="text/css" href="https://www.layuicdn.com/layui/css/layui.css" />
<script src="https://www.layuicdn.com/layui/layui.js" charset="utf-8"></script>
</head>
<body>
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 20px;">
<legend>Zhe - 登錄注冊演示</legend>
</fieldset>
<div style="padding: 20px; background-color: #F2F2F2;">
<div class="layui-row layui-col-space15">
<div class="layui-col-md6">
<div class="layui-card">
<div class="layui-card-header">注冊</div>
<div class="layui-card-body">
<form class="layui-form" action="register.php" method="post" onsubmit="return checkForm(this)" lay-filter="example">
<div class="layui-form-item">
<label class="layui-form-label">輸入框</label>
<div class="layui-input-block">
<input type="text" name="username" placeholder="請輸入賬號" class="layui-input">
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label">密碼框</label>
<div class="layui-input-block">
<input type="password" name="password" placeholder="請輸入密碼" class="layui-input">
</div>
</div>
<div class="layui-form-item">
<div class="layui-input-block">
<input type="submit" class="layui-btn layui-btn-normal" value="立即注冊"/>
</div>
</div>
</form>
</div>
</div>
</div>
<div class="layui-col-md6">
<div class="layui-card">
<div class="layui-card-header">登錄</div>
<div class="layui-card-body">
<form class="layui-form" action="login.php" method="post" onsubmit="return checkForm(this)" lay-filter="example">
<div class="layui-form-item">
<label class="layui-form-label">輸入框</label>
<div class="layui-input-block">
<input type="text" name="username" placeholder="請輸入賬號" class="layui-input">
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label">密碼框</label>
<div class="layui-input-block">
<input type="password" name="password" placeholder="請輸入密碼" class="layui-input">
</div>
</div>
<div class="layui-form-item">
<div class="layui-input-block">
<input type="submit" class="layui-btn layui-btn-normal" value="立即登錄"/>
</div>
</div>
</form>
</div>
</div>
</div>
</div>
</div>
<script type="text/javascript">
// 驗證輸入不為空的腳本代碼
function checkForm(form) {
if(form.username.value == "") {
alert("用戶名不能為空!");
form.username.focus();
return false;
}
if(form.password.value == "") {
alert("密碼不能為空!");
form.password.focus();
return false;
}
return true;
}
</script>
</body>
</html>
login.php
代碼：
<?php
session_start();
header("content-type:text/html;charset=utf-8");
//連接資料庫
$link = mysqli_connect("localhost","pay_com_cn","pay_com_cn","pay_com_cn");
if (!$link) {
die("連接失敗: " . mysqli_connect_error());
}
//接收$_POST用戶名和密碼
$username = $_POST['username'];
$password = $_POST['password'];
//查看表user用戶名與密碼和傳輸值是否相等
$sql = "SELECT * FROM user WHERE username = '$username' AND password = '$password'";
//result必需規定由 mysqli_query()、mysqli_store_result() 或 mysqli_use_result() 回傳的結果集識別符號，
$result = mysqli_query($link,$sql);
$num = mysqli_num_rows($result);//函式回傳結果集中行的數量
//判斷是否登錄后顯示或跳轉
if($num){
echo '登錄成功';
}else{
echo'登錄失敗';
}
mysqli_close($link);//關閉資料庫
?>
register.php
代碼：
<?php
header("content-type:text/html;charset=utf-8");
//連接資料庫
$link = mysqli_connect("localhost","pay_com_cn","pay_com_cn","pay_com_cn");
if (!$link) {
die("連接失敗: " . mysqli_connect_error());
}
//接收$_POST用戶名和密碼
$username=$_POST['username'];
$password=$_POST['password'];
//查看表user用戶名是否存在或為空
$sql_select = "SELECT * FROM user WHERE username = '$username'";
//result必需規定由 mysqli_query()、mysqli_store_result() 或 mysqli_use_result() 回傳的結果集識別符號，
$select = mysqli_query($link,$sql_select);
$num = mysqli_num_rows($select);//函式回傳結果集中行的數量
if($username == "" || $password == "")
{
echo "請確認資訊完整性";
}else if($num){
echo "已存在用戶名";//已存在賬戶名輸出錯誤
}else{
$sql="insert into user(username,password) values('$username','$password')";
$result=mysqli_query($link,$sql);
//判斷是否注冊后顯示內容
if(!$result)
{
echo "注冊不成功！"."<br>";//輸出錯誤
echo "<a href='index.php'>回傳</a>";//超鏈接到首頁
}
else
{
echo "注冊成功!"."<br/>";//輸出成功
echo "<a href='index.hphp'>立刻登錄</a>";//超鏈接到首頁
}
}
?>
最后附上本文用到的mysql表
以上就是一個簡單的PHP注冊登錄頁面了~
非常感謝大家的關注支持~
原創不易，感謝支持
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