用户登录我的网站后，他们可以填写一个包含两个字段的表单:“项目名称”和“项目描述”。
我需要帮助存储填写该表单的人的用户名。
例如，如果我以管理员身份登录并填写表单，则数据库中应该在表单信息旁边显示用户名 Admin。
非常感谢您的帮助，并提前感谢您!
表单数据库:
数据库名称:formsystem
表名:form
我想将用户名保存到的列:form_user
我的代码(groupForm.php):
<?php
session_start();
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<link rel="stylesheet" href="./css/form.css">
<link rel="stylesheet" href="./css/style.css">
</head>
<body>
<header>
<nav>
<div class="main-wrapper">
<div id="branding">
<li><h1><span><a href="homepage.php">ProjectNet</a></span></li>
</div>
<div class="nav-login">
<?php
if (isset($_SESSION['u_id'])) {
echo '<form action="includes/logout.inc.php" method="POST">
<button type="submit" name="submit">Logout</button>
</form>';
} else {
echo '<form action="includes/login.inc.php" method="POST">
<input type="text" name="uid" placeholder="Username/Email">
<input type="password" name="pwd" placeholder="Password">
<button type="submit" name="submit">Login</button>
</form>
<a href="signup.php">Sign up</a>';
}
?>
</div>
</nav>
</header>
<section id="showcase1">
<div class="container">
<form id="contact" action="includes/form_process.php" method="POST">
<h3>Creating a Group</h3>
<h4>Please fill out the sections below.</h4>
<fieldset>
<input placeholder="Project title" type="text" name="name">
</fieldset>
<fieldset>
<textarea placeholder="Description of the project...." type="text" name="message" ></textarea>
</fieldset>
<fieldset>
<button name="submit" type="submit">Create</button>
</fieldset>
</form>
</div>
</section>
</body>
</html>
后端代码(form_process.php):
<?php
session_start();
if (isset($_POST['submit'])) {
function fetch_user_info($u_id){
$u_id = (int)$u_id;
$sql = "SELECT `user_uid` AS `username` FROM `users` WHERE `user_id` = {$u_id}";
$result = mysql_query($sql);
return mysql_fetch_assoc($result);
}
include_once 'formDatabaseConnection.php';
$name = mysqli_real_escape_string($conn, $_POST['name']);
$message = mysqli_real_escape_string($conn, $_POST['message']);
//Check for empty fields
if (empty($name) || empty($message)) {
header("Location: ../groupForm.php?signup=empty");
exit();
} else {
//Insert the user into the database
$sql = "INSERT INTO form (form_user, form_name, form_description) VALUES ('$u_id', '$name', '$message');";
mysqli_query($conn, $sql);
header("Location: ../findGroup.php");
exit();
}
} else {
header("Location: ../groupForm.php");
exit();
}
更新:
登录代码(login.inc.php):
<?php
session_start();
if (isset($_POST['submit'])) {
include 'dbh.inc.php';
$uid = mysqli_real_escape_string($conn, $_POST['uid']);
$pwd = mysqli_real_escape_string($conn, $_POST['pwd']);
//Error handlers
//Check if inputs are empty
if (empty($uid) || empty($pwd)) {
header("Location: ../index.php?login=empty");
exit();
} else {
$sql = "SELECT * FROM users WHERE user_uid='$uid' OR user_email='$uid'";
$result = mysqli_query($conn, $sql);
$resultCheck = mysqli_num_rows($result);
if ($resultCheck < 1) {
header("Location: ../index.php?login=error");
exit();
} else {
if ($row = mysqli_fetch_assoc($result)) {
//De-hashing the password
$hashedPwdCheck = password_verify($pwd, $row['user_pwd']);
if ($hashedPwdCheck == false) {
header("Location: ../index.php?login=error");
exit();
} elseif ($hashedPwdCheck == true) {
//log in the user here
$_SESSION['u_id'] = $row['user_id'];
$_SESSION['u_first'] = $row['user_first'];
$_SESSION['u_last'] = $row['user_last'];
$_SESSION['u_email'] = $row['user_email'];
$_SESSION['u_uid'] = $row['user_uid'];
header("Location: ../homepage.php");
exit();
}
}
}
}
} else {
header("Location: ../index.php?login=error");
exit();
}
最佳答案
当用户登录您的系统时，将该用户的 ID 和用户名存储在 session 中，并在您想要保存时检索该用户名，并将 form_user 值替换为该 session 值。检查下面的代码以获得更多说明。
$username = $_SESSION['u_first']. ' '.$_SESSION['u_last'];
$sql = "INSERT INTO form (form_user, form_name, form_description) VALUES ($username, $name, $message)";
关于PHP/SQL 存储表单完成后当前登录用户的名称，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/49823877/