PHP网页设计作业，bootstrap前端框架留言板系统源码
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PHP网页设计作业，bootstrap前端框架留言板系统源码
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功能介紹：
用戶：注冊，登錄，頭像上傳，留言，留言編輯，留言刪除，
管理員：密碼修改，退出登錄，用戶管理，留言管理
<html><head><!---引用css樣式 --><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><link href="dist/css/bootstrap.min.css" rel="stylesheet"><!-- JavaScript Bundle with Popper --><script src="dist/js/bootstrap.bundle.min.js"></script><title>BBS</title> </head> <?php include 'conn.php'; include 'includes/basic.func.php'; if ($_POST) {$_clean['username'] = _check_username($_POST['username'], 2, 20); //驗證用戶名$_clean['password'] = _check_password($_POST['password'], $_POST['repassword'], 6); //驗證密碼$query = mysqli_query($conn, "select username from guest where username = '{$_clean['username']}'"); //查詢用戶名是否已經被注冊if ($_row = mysqli_fetch_array($query, MYSQLI_ASSOC)) {_alert_back('此用戶已經被注冊');};$query = mysqli_query($conn, "insert into guest (username,password,phone,sex,address,date) values ('{$_POST['username']}','{$_POST['password']}','{$_POST['phone']}','{$_POST['sex']}','{$_POST['address']}',now())"); //寫入用戶注冊信息_alert_location('恭喜你，注冊成功', 'login.php'); }; ?><body><nav class="navbar navbar-expand-lg navbar-light bg-light"><div class="container-fluid"><a class="navbar-brand" href="#">BBS</a><button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation"><span class="navbar-toggler-icon"></span></button><div class="collapse navbar-collapse" id="navbarSupportedContent"><ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item"><a class="nav-link active" aria-current="page" href="index.php">首頁</a></li><?phpsession_start(); //開啟sessionif (!$_SESSION['username']) { ?><li class="nav-item"><a class="nav-link" href="reg.php">注冊 </a></li><li class="nav-item"><a class="nav-link" href="login.php">登錄 </a></li><?php } else { ?><li class="nav-item"><a class="nav-link" href="userinfo.php"><?php echo $_SESSION['username'] ?></a></li><li class="nav-item"><a class="nav-link" href="logout.php">退出 </a></li><?php } ?></ul><form class="d-flex" role="search" action="index.php"><input class="form-control me-2" name="keywords" type="search" placeholder="請輸入關鍵詞" aria-label="Search"><button class="btn btn-outline-success" type="submit">搜索</button></form></div></div></nav><div class="container-md"><nav aria-label="breadcrumb"><ol class="breadcrumb"><li class="breadcrumb-item"><a href="#">首頁</a></li><li class="breadcrumb-item active" aria-current="page">注冊</li></ol></nav><div class="news pad"><form method="post" name="reg" action=""><h3 align="center">用戶注冊</h3><table border="0" align="center"><tr><td>用戶名: </td><td><input type="text" class="form-control" name="username" class="form-control" /></td></tr><tr><td>密碼: </td><td><input type="password" class="form-control" name="password" class="form-control" /></td></tr><tr><td>重復密碼:</td><td><input type="password" class="form-control" name="repassword" class="form-control" /></td></tr><tr><td>性別:</td><td><select class="form-control" name="sex"><option>男</option><option>女</option></select></td></tr><tr><td>電話: </td><td><input class="form-control" type="text" name="phone" class="form-control" /></td></tr><tr><td>家鄉: </td><td><input class="form-control" type="text" name="address" class="form-control" /></td></tr><tr><td colspan="2" align="center"><input type="submit" class="btn btn-primary" style="width:80px;" value="注冊" /><a href="login.php">登錄</a></td></tr></table></form></div></div><div class="clear"></div></div><footer class="footer border-top"><p align="center">BBS <a href="admin/admin.php">管理員</a></p><!--- 底部管理入口 --></footer> </body></html> <html><head><!---引用css樣式 --><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><!-- CSS only --><link href="dist/css/bootstrap.min.css" rel="stylesheet"><!-- JavaScript Bundle with Popper --><script src="dist/js/bootstrap.bundle.min.js"></script><title>BBS</title> </head> <?php include 'conn.php'; if ($_POST) {$query = mysqli_query($conn, "select * from guest where username='{$_POST['username']}' && password='{$_POST['password']}'"); //查詢用戶帳號密碼信息$rows = mysqli_fetch_array($query, MYSQLI_ASSOC);if (!$rows) {echo "<script type='text/javascript'>alert('您的密碼或者帳號不正確，請重新輸入！');history.back();</script>";} else {$_SESSION['username'] = $rows['username']; //寫入session$_SESSION['uid'] = $rows['id'];echo "<script type='text/javascript'>alert('成功！');window.location.href='index.php';ck();</script>";} } ?><body><nav class="navbar navbar-expand-lg navbar-light bg-light"><div class="container-fluid"><a class="navbar-brand" href="#">BBS</a><button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation"><span class="navbar-toggler-icon"></span></button><div class="collapse navbar-collapse" id="navbarSupportedContent"><ul class="navbar-nav me-auto mb-2 mb-lg-0"><li class="nav-item"><a class="nav-link active" aria-current="page" href="index.php">首頁</a></li><?phpsession_start(); //開啟sessionif (!$_SESSION['username']) { ?><li class="nav-item"><a class="nav-link" href="reg.php">注冊 </a></li><li class="nav-item"><a class="nav-link" href="login.php">登錄 </a></li><?php } else { ?><li class="nav-item"><a class="nav-link" href="userinfo.php"><?php echo $_SESSION['username'] ?></a></li><li class="nav-item"><a class="nav-link" href="logout.php">退出 </a></li><?php } ?></ul><form class="d-flex" role="search" action="index.php"><input class="form-control me-2" name="keywords" type="search" placeholder="請輸入關鍵詞" aria-label="Search"><button class="btn btn-outline-success" type="submit">搜索</button></form></div></div></nav><div class="container-md"><nav aria-label="breadcrumb"><ol class="breadcrumb"><li class="breadcrumb-item"><a href="#">首頁</a></li><li class="breadcrumb-item active" aria-current="page">登錄</li></ol></nav><form method="post"><table border="0" align="center"><tr><td colspan="2"><h3 align="center">用戶登錄</h3></td></tr><tr><td><label for="exampleInputEmail1" class="form-label">帳號：</label></td><td><input type="text" class="form-control" name="username" id="exampleInputEmail1" aria-describedby="emailHelp"></td></tr><tr><td><label for="exampleInputPassword1" class="form-label">密碼：</label></td><td><input type="password" name="password" class="form-control" id="exampleInputPassword1"></td></tr><tr><td colspan="2"><button type="submit" value="登錄" class="btn btn-primary">登錄</button> <a href="reg.php">注冊</a></td></tr></table></form></div><div class="clear"></div></div><footer class="footer border-top"><p align="center">BBS <a href="admin/admin.php">管理員</a></p><!--- 底部管理入口 --></footer> </body></html>?
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php課程設計作業，bootstrap前端框架,php+mysql留言板增刪改查
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