html代码
<div class="container"> <?php if (isset($error_msg)): ?> <div class="alert alert-danger" role="alert"><?php echo $error_msg; ?></div> <?php endif ?> <?php if (isset($success_msg)): ?> <div class="alert alert-info" role="alert"><?php echo $success_msg; ?></div> <?php endif ?> <form action="<?php echo $_server['php_self']; ?>" method="post" autocomplete="on"> <div class="form-group"> <label for="administrator">管理员账号(11位手机号码)</label> <input type="number" class="form-control" name="administrator" id="administrator" value="<?php echo isset($_post['administrator']) ? $_post['administrator'] : ''; ?>"> </div> <div class="form-group"> <label for="password">密码</label> <input type="password" class="form-control" name="password" id="password"> </div> <button class="btn btn-info btn-md btn-block">登录</button> </form> </div>
css:
<link rel="stylesheet" type="text/css" href="css/bootstrap.css"> <style type="text/css"> .container { margin-top: 150px; } </style>
php:
function login () { if (empty($_post['administrator'])) { $globals['error_msg'] = '请输入管理员账号'; return; } if (strlen($_post['administrator']) !== 11) { $globals['error_msg'] = '您输入的管理员账号不符合相关规定'; $_post['administrator'] = ''; return; } if (empty($_post['password'])) { $globals['error_msg'] = '请输入密码'; return; } $connection = mysqli_connect('localhost', 'root', '密码', 'students_info_system'); if (!$connection) { $globals['error_msg'] = '连接数据库失败'; return; } $query = mysqli_query($connection, 'select * from administrators'); if (!$query) { $globals['error_msg'] = '查询数据失败'; return; } while ($administrator = mysqli_fetch_assoc($query)) { $administrators[] = $administrator; } // var_dump($administrators); for ($i = 0; $i < count($administrators); $i++) { $administrator[] = $administrators[$i]['administrator']; $passwords[] = $administrators[$i]['password']; } // var_dump($administrator); // var_dump($passwords); if (!in_array((string)$_post['administrator'], $administrator)) { $globals['error_msg'] = '您输入的管理员账号不存在'; return; } if (!in_array((string)$_post['password'], $passwords)) { $globals['error_msg'] = '密码错误'; return; } // 账号和密码都存在了----判断密码和账号与数据库中是否一致 $index = array_search($_post['administrator'], $administrator); if ((string)$_post['password'] !== $passwords[$index]) { $globals['error_msg'] = '密码错误'; return; } // 在数据库找到了相应的账号和密码 $globals['success_msg'] = '登录成功'; // 延时2秒执行后面的代码 time_sleep_until(time() + 2); // 跳转到内容页面(并将账号一并传过去,区分用户账号以显示各个用户对应的界面) header("location: student_info.php?id={$_post['administrator']}"); } if ($_server['request_method'] === 'post') { login(); }
html:
<div class="container"> <form action="<?php echo $_server['php_self']; ?>" method="post" complete="on"> <?php if (isset($error_msg)): ?> <div class="alert alert-danger" role="alert"><?php echo $error_msg; ?></div> <?php endif ?> <?php if (isset($success_msg)): ?> <div class="alert alert-info" role="alert"><?php echo $success_msg; ?></div> <?php endif ?> <div class="form-group"> <label for="administrator">管理员账户(11位手机号码即可)</label> <input type="number" class="form-control" name="administrator" id="administrator" value="<?php echo isset($_post['administrator']) ? $_post['administrator'] : ''; ?>"> </div> <div class="form-group"> <label for="password">密码</label> <input type="password" name="password" id="password" class="form-control" value="<?php echo isset($_post['password']) ? $_post['password'] : ''; ?>"> </div> <div class="form-group"> <label for="check-pwd">确认密码</label> <input type="password" name="check-pwd" id="check-pwd" class="form-control"> </div> <button class="btn btn-info btn-block btn-md">注册</button> </form> </div>
css:
<link rel="stylesheet" type="text/css" href="css/bootstrap.css"> <style type="text/css"> .container { margin-top: 100px; } </style>
php:
function register () { $connection = mysqli_connect('localhost', 'root', '密码', 'students_info_system'); if (!$connection) { $globals['error_msg'] = '连接数据库失败'; return; } $query = mysqli_query($connection, 'select * from administrators'); if (!$query) { $globals['error_msg'] = '查询数据失败'; return; } while ($administrator = mysqli_fetch_assoc($query)) { $administrators[] = $administrator; } // var_dump($administrators); // 获取数据库中已经注册的账号 for ($i = 0; $i < count($administrators); $i++) { $administrator[] = $administrators[$i]['administrator']; } if (empty($_post['administrator'])) { $globals['error_msg'] = '请输入管理员账户'; return; } if (strlen($_post['administrator']) !== 11) { $globals['error_msg'] = '您输入的管理员账户不符合相关规定,请重新输入'; $_post['administrator'] = ''; return; } // 判断该账号是否已被注册 if (in_array($_post['administrator'], $administrator)) { $globals['error_msg'] = '该账号已被注册,请另起账号'; return; } if (empty($_post['password'])) { $globals['error_msg'] = '请输入密码'; return; } if (empty($_post['check-pwd'])) { $globals['error_msg'] = '请确认密码'; return; } if ($_post['check-pwd'] !== $_post['password']) { $globals['error_msg'] = '两次密码输入不一致,请重新确认密码'; return; } $administrator = $_post['administrator']; $password = $_post['password'];$query = mysqli_query($connection, "insert into administrators values ({$administrator}, '{$password}')"); if (!$query) { $globals['error_msg'] = '查询数据失败'; return; } $affected_rows = mysqli_affected_rows($query); if ($affected_rows !== 1) { $globals['error_msg'] = '插入数据失败'; } $globals['success_msg'] = '注册成功'; // 延时2秒执行后面的语句 time_sleep_until(time() + 2); header('location: '); } if ($_server['request_method'] === 'post') { register(); }
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