它不显示任何错误输出并验证输入字段。我不知道这段代码中发生了什么。希望有人可以弄清楚发生了什么。谢谢......
这里是数据库连接
<?php
// this will avoid mysql_connect() deprecation error.
error_reporting( ~E_DEPRECATED & ~E_NOTICE );
// but I strongly suggest you to use PDO or MySQLi.
define('DBHOST', 'localhost');
define('DBUSER', 'root');
define('DBPASS', '');
define('DBNAME', 'loginquestdb');
$conn = mysqli_connect(DBHOST,DBUSER,DBPASS);
$dbcon = mysqli_select_db($conn,DBNAME);
if ( !$conn ) {
die("Connection failed : " . mysqli_error($conn));
}
if ( !$dbcon ) {
die("Database Connection failed : " . mysqli_error($conn));
}
这里是html代码：
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Coding Cage - Login & Registration System</title>
<link rel="stylesheet" href="assets/css/bootstrap.min.css" type="text/css" />
<link rel="stylesheet" href="style.css" type="text/css" />
</head>
<body>
<div class="container">
<div id="login-form">
<form method="post" action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']); ?>" autocomplete="off">
<div class="col-md-12">
<div class="form-group">
<h2 class="">Sign Up.</h2>
</div>
<div class="form-group">
<hr />
</div>
<?php
if ( isset($errMSG) ) {
?>
<div class="form-group">
<div class="alert alert-<?php echo ($errTyp=="success") ? "success" : $errTyp; ?>">
<span class="glyphicon glyphicon-info-sign"></span> <?php echo $errMSG; ?>
</div>
</div>
<?php
}
?>
<div class="form-group">
<div class="input-group">
<span class="input-group-addon"><span class="glyphicon glyphicon-user"></span></span>
<input type="text" name="name" class="form-control" placeholder="Enter Name" maxlength="50" value="<?php echo $name ?>" />
</div>
<span class="text-danger"><?php echo $nameError; ?></span>
</div>
<div class="form-group">
<div class="input-group">
<span class="input-group-addon"><span class="glyphicon glyphicon-envelope"></span></span>
<input type="email" name="email" class="form-control" placeholder="Enter Your Email" maxlength="40" value="<?php echo $email ?>" />
</div>
<span class="text-danger"><?php echo $emailError; ?></span>
</div>
<div class="form-group">
<div class="input-group">
<span class="input-group-addon"><span class="glyphicon glyphicon-lock"></span></span>
<input type="password" name="pass" class="form-control" placeholder="Enter Password" maxlength="15" />
</div>
<span class="text-danger"><?php echo $passError; ?></span>
</div>
<div class="form-group">
<hr />
</div>
<div class="form-group">
<button type="submit" class="btn btn-block btn-primary" name="btn-signup">Sign Up</button>
</div>
<div class="form-group">
<hr />
</div>
<div class="form-group">
<a href="index.php">Sign in Here...</a>
</div>
</div>
</form>
</div>
</div>
</body>
</html>
<?php ob_end_flush(); ?>
这里是php代码：
<?php
ob_start();
session_start();
if( isset($_SESSION['user'])!="" ){
header("Location: home.php");
}
include_once 'dbconnect.php';
$error = false;
if ( isset($_POST['btn-signup']) ) {
// clean user inputs to prevent sql injections
$name = trim($_POST['name']);
$name = strip_tags($name);
$name = htmlspecialchars($name);
$email = trim($_POST['email']);
$email = strip_tags($email);
$email = htmlspecialchars($email);
$pass = trim($_POST['pass']);
$pass = strip_tags($pass);
$pass = htmlspecialchars($pass);
// basic name validation
if (empty($name)) {
$error = true;
$nameError = "Please enter your full name.";
} else if (strlen($name) < 3) {
$error = true;
$nameError = "Name must have at least 3 characters.";
} else if (!preg_match("/^[a-zA-Z ]+$/",$name)) {
$error = true;
$nameError = "Name must contain alphabets and space.";
}
//basic email validation
if ( !filter_var($email,FILTER_VALIDATE_EMAIL) ) {
$error = true;
$emailError = "Please enter valid email address.";
} else {
// check email exist or not
$query = "SELECT userEmail FROM users WHERE userEmail='$email'";
$result = mysqli_query($query);
$count = mysqli_num_rows($result);
if($count!=0){
$error = true;
$emailError = "Provided Email is already in use.";
}
}
// password validation
if (empty($pass)){
$error = true;
$passError = "Please enter password.";
} else if(strlen($pass) < 6) {
$error = true;
$passError = "Password must have at least 6 characters.";
}
// password encrypt using SHA256();
$password = hash('sha256', $pass);
// if there's no error, continue to signup
if( !$error ) {
$query = "INSERT INTO users(userName,userEmail,userPass) VALUES('$name','$email','$password')";
$res = mysqli_query($query);
if ($res) {
$errTyp = "success";
$errMSG = "Successfully registered, you may login now";
unset($name);
unset($email);
unset($pass);
} else {
$errTyp = "danger";
$errMSG = "Something went wrong, try again later...";
}
}
}
?>
答案 0 :(得分：0)
如果else为真，您将要添加$error语句以回显错误消息。
// if there's no error, continue to signup
if( !$error ) {
$query = "INSERT INTO users(userName,userEmail,userPass) VALUES('$name','$email','$password')";
$res = mysqli_query($dbcon, $query);
if ($res) {
$errTyp = "success";
$errMSG = "Successfully registered, you may login now";
unset($name);
unset($email);
unset($pass);
} else {
$errTyp = "danger";
$errMSG = "Something went wrong, try again later...";
}
} else {
// if there's an error, display it
echo $nameError . ' ' . $emailError . ' ' . $passError;
}
也许考虑使用数组来存储错误，因此哪个字段有错误并不重要，它会更容易格式化显示。例如，在您的名称验证码中：
// basic name validation
if (empty($name)) {
$error = true;
$errorMsgs[] = "Please enter your full name.";
} else if (strlen($name) < 3) {
$error = true;
$errorMsgs[] = "Name must have at least 3 characters.";
} else if (!preg_match("/^[a-zA-Z ]+$/",$name)) {
$error = true;
$errorMsgs[] = "Name must contain alphabets and space.";
}
// in your if/else statement
if(!$error){
// code here
} else {
foreach($errorMsgs as $e){
echo $e . "<br />";
}
}