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我正在關注Adam Khoury的「如何構建社交網絡網站」教程，我在第6課「註冊表單和電子郵件激活PHP MySQL JavaScript編程教程「。註冊表格和電子郵件激活developPHP.com教程
課和代碼在這裏： http://www.developphp.com/view.php?tid=1294
完成本課程後，我有一個新用戶註冊形式，但我遇到的兩個問題。
的形式表示，註冊成功後，它會顯示正確的確認消息「OK TestUser用戶，請檢查您的電子郵件收件箱和垃圾郵件箱在[email protected]在瞬間完成註冊通過激活您的帳戶進行處理。在成功激活您的帳戶之前，您無法在網站上執行任何操作。「，但是用戶的詳細信息不會輸入到用戶數據庫表中。
2.確認電子郵件不會被髮送到用戶的收件箱（或垃圾郵件爲此事）
我使用bluehost.com作爲我的服務器，我已創建BlueHost的正確的電子郵件地址（由於隱私原因，下面的代碼中的電子郵件地址已更改爲「[email protected]」）。
這是我signup.php文件：
<?php session_start();
// If user is logged in, header them away
if(isset($_SESSION["username"])){
header("location: message.php?msg=NO to that weenis");
exit();
}
?><?php if(isset($_POST["usernamecheck"])){
include_once("php_includes/db_conx.php");
$username = preg_replace('#[^a-z0-9]#i', '', $_POST['usernamecheck']);
$sql = "SELECT id FROM users WHERE username='$username' LIMIT 1";
$query = mysqli_query($db_conx, $sql);
$uname_check = mysqli_num_rows($query);
if (strlen($username) < 3 || strlen($username) > 16) {
echo '<strong style="color:#F00;">3 - 16 characters please</strong>';
exit();
}
if (is_numeric($username[0])) {
echo '<strong style="color:#F00;">Usernames must begin with a letter</strong>';
exit();
}
if ($uname_check < 1) {
echo '<strong style="color:#009900;">' . $username . ' is OK</strong>';
exit();
} else {
echo '<strong style="color:#F00;">' . $username . ' is taken</strong>';
exit();
}
}
?><?php if(isset($_POST["u"])){
// CONNECT TO THE DATABASE
include_once("php_includes/db_conx.php");
// GATHER THE POSTED DATA INTO LOCAL VARIABLES
$u = preg_replace('#[^a-z0-9]#i', '', $_POST['u']);
$e = mysqli_real_escape_string($db_conx, $_POST['e']);
$p = $_POST['p'];
$g = preg_replace('#[^a-z]#', '', $_POST['g']);
$c = preg_replace('#[^a-z ]#i', '', $_POST['c']);
// GET USER IP ADDRESS
$ip = preg_replace('#[^0-9.]#', '', getenv('REMOTE_ADDR'));
// DUPLICATE DATA CHECKS FOR USERNAME AND EMAIL
$sql = "SELECT id FROM users WHERE username='$u' LIMIT 1";
$query = mysqli_query($db_conx, $sql);
$u_check = mysqli_num_rows($query);
// -------------------------------------------
$sql = "SELECT id FROM users WHERE email='$e' LIMIT 1";
$query = mysqli_query($db_conx, $sql);
$e_check = mysqli_num_rows($query);
// FORM DATA ERROR HANDLING
if($u == "" || $e == "" || $p == "" || $g == "" || $c == ""){
echo "The form submission is missing values.";
exit();
} else if ($u_check > 0){
echo "The username you entered is alreay taken";
exit();
} else if ($e_check > 0){
echo "That email address is already in use in the system";
exit();
} else if (strlen($u) < 3 || strlen($u) > 16) {
echo "Username must be between 3 and 16 characters";
exit();
} else if (is_numeric($u[0])) {
echo 'Username cannot begin with a number';
exit();
} else {
// END FORM DATA ERROR HANDLING
// Begin Insertion of data into the database
// Hash the password and apply your own mysterious unique salt
/*$cryptpass = crypt($p);
include_once ("php_includes/randStrGen.php");
$p_hash = randStrGen(20)."$cryptpass".randStrGen(20);*/
$p_hash = md5($p);//CHANGE THIS!!!!!
// Add user info into the database table for the main site table
$sql = "INSERT INTO users (username, email, password, gender, country, ip, signup, lastlogin, notescheck)
VALUES('$u','$e','$p_hash','$g','$c','$ip',now(),now(),now())";
$query = mysqli_query($db_conx, $sql);
$uid = mysqli_insert_id($db_conx);
// Establish their row in the useroptions table
$sql = "INSERT INTO useroptions (id, username, background) VALUES ('$uid','$u','original')";
$query = mysqli_query($db_conx, $sql);
// Create directory(folder) to hold each user's files(pics, MP3s, etc.)
if (!file_exists("user/$u")) {
mkdir("user/$u", 0755);
}
// Email the user their activation link
$to = "$e";
$from = "[email protected]";
$subject = 'yoursitename Account Activation';
$message = '<!DOCTYPE html><html><head><meta charset="UTF-8"><title>yoursitename Message</title></head><body style="margin:0px; font-family:Tahoma, Geneva, sans-serif;"><div style="padding:10px; background:#333; font-size:24px; color:#CCC;"><a href="http://www.yoursitename.com"><img src="http://www.yoursitename.com/images/logo.png" width="36" height="30" alt="yoursitename" style="border:none; float:left;"></a>yoursitename Account Activation</div><div style="padding:24px; font-size:17px;">Hello '.$u.',<br /><br />Click the link below to activate your account when ready:<br /><br /><a href="http://www.yoursitename.com/activation.php?id='.$uid.'&u='.$u.'&e='.$e.'&p='.$p_hash.'">Click here to activate your account now</a><br /><br />Login after successful activation using your:<br />* E-mail Address: <b>'.$e.'</b></div></body></html>';
$headers = "From: $from\n";
$headers .= "MIME-Version: 1.0\n";
$headers .= "Content-type: text/html; charset=iso-8859-1\n";
mail($to, $subject, $message, $headers);
echo "signup_success";
exit();
}
exit();
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Sign Up</title>
<link rel="icon" href="favicon.ico" type="image/x-icon">
<link rel="stylesheet" href="style/style.css">
<style type="text/css">
#signupform{
margin-top:24px;
}
#signupform > div {
margin-top: 12px;
}
#signupform > input,select {
width: 200px;
padding: 3px;
background: #F3F9DD;
}
#signupbtn {
font-size:18px;
padding: 12px;
}
#terms {
border:#CCC 1px solid;
background: #F5F5F5;
padding: 12px;
}
</style>
<script src="js/main.js"></script>
<script src="js/ajax.js"></script>
<script>
function restrict(elem){
var tf = _(elem);
var rx = new RegExp;
if(elem == "email"){
rx = /[' "]/gi;
} else if(elem == "username"){
rx = /[^a-z0-9]/gi;
}
tf.value = tf.value.replace(rx, "");
}
function emptyElement(x){
_(x).innerHTML = "";
}
function checkusername(){
var u = _("username").value;
if(u != ""){
_("unamestatus").innerHTML = 'checking ...';
var ajax = ajaxObj("POST", "signup.php");
ajax.onreadystatechange = function() {
if(ajaxReturn(ajax) == true) {
_("unamestatus").innerHTML = ajax.responseText;
}
}
ajax.send("usernamecheck="+u);
}
}
function signup(){
var u = _("username").value;
var e = _("email").value;
var p1 = _("pass1").value;
var p2 = _("pass2").value;
var c = _("country").value;
var g = _("gender").value;
var status = _("status");
if(u == "" || e == "" || p1 == "" || p2 == "" || c == "" || g == ""){
status.innerHTML = "Fill out all of the form data";
} else if(p1 != p2){
status.innerHTML = "Your password fields do not match";
} else if(_("terms").style.display == "none"){
status.innerHTML = "Please view the terms of use";
} else {
_("signupbtn").style.display = "none";
status.innerHTML = 'please wait ...';
var ajax = ajaxObj("POST", "signup.php");
ajax.onreadystatechange = function() {
if(ajaxReturn(ajax) == true) {
if(ajax.responseText.replace(/^\s+|\s+$/g, "") == "signup_success"){
status.innerHTML = ajax.responseText;
_("signupbtn").style.display = "block";
} else {
window.scrollTo(0,0);
_("signupform").innerHTML = "OK "+u+", check your email inbox and junk mail box at <u>"+e+"</u> in a moment to complete the sign up process by activating your account. You will not be able to do anything on the site until you successfully activate your account.";
}
}
}
ajax.send("u="+u+"&e="+e+"&p="+p1+"&c="+c+"&g="+g);
}
}
function openTerms(){
_("terms").style.display = "block";
emptyElement("status");
}
/* function addEvents(){
_("elemID").addEventListener("click", func, false);
}
window.onload = addEvents; */
</script>
</head>
<body>
<?php include_once("template_pageTop.php"); ?>
<div id="pageMiddle">
<h3>Sign Up Here</h3>
<form name="signupform" id="signupform" onSubmit="return false;">
<div>Username: </div>
<input id="username" type="text" onBlur="checkusername()" onKeyUp="restrict('username')" maxlength="16">
<span id="unamestatus"></span>
<div>Email Address:</div>
<input id="email" type="text" onFocus="emptyElement('status')" onKeyUp="restrict('email')" maxlength="88">
<div>Create Password:</div>
<input id="pass1" type="password" onFocus="emptyElement('status')" maxlength="16">
<div>Confirm Password:</div>
<input id="pass2" type="password" onFocus="emptyElement('status')" maxlength="16">
<div>Gender:</div>
<select id="gender" onFocus="emptyElement('status')">
<option value=""></option>
<option value="m">Male</option>
<option value="f">Female</option>
</select>
<div>Country:</div>
<select id="country" onFocus="emptyElement('status')">
<?php include_once("template_country_list.php"); ?>
</select>
<div>
<a href="#" onClick="return false" onMouseDown="openTerms()">
View the Terms Of Use
</a>
</div>
<div id="terms" style="display:none;">
<h3>Web Intersect Terms Of Use</h3>
<p>1. Play nice here.</p>
<p>2. Take a bath before you visit.</p>
<p>3. Brush your teeth before bed.</p>
</div>
<br /><br />
<button id="signupbtn" onClick="signup()">Create Account</button>
<span id="status"></span>
</form>
</div>
<?php include_once("template_pageBottom.php"); ?>
</body>
</html>
你沒有做任何檢查，看看你的SQL語句是否正常工作 - 我會添加一些調用到'mysqli_error'看。另外，你確定你的SQL字符串是否正確生成？回聲一下，看看你是否可以直接在數據庫中運行它。此外，您應該查看是否可以使用預準備語句，而不是直接將變量添加到SQL字符串中，因爲這會使您的代碼更安全。 – andrewsi
我可以爲你描述一些例子的麻煩你。我是PHP和mysqli的新手。這就是我接受教程的原因。 – Livi17
關於mysqli的手冊頁非常全面：http：//php.net/manual/en/book.mysqli.php。你可以用mysqli_error（$ db_conx）''從數據庫中得到最後一條錯誤信息。準備好的語句稍微複雜一點，但如果你看一下'prepare（）'函數的頁面，它就會顯示你需要做的事情。您正在清理用戶的輸入;但準備好的陳述爲你做了很多工作。 – andrewsi