我一直在尝试解决一个问题，但到目前为止我一直没有运气。
我有一个与用户的姓和名相呼应的个人资料页面。此函数在用户首次注册时起作用。然而，问题是，当用户注销(结束会话)并重新登录并返回他/她的个人资料页面时，名字和姓氏不显示，而是留下空白。
为了更好地阐明这些途径:
1。用户注册->配置文件显示姓和名2.用户登录->配置文件不显示姓和名
这里是有关这个问题的代码(我已经有session_start()在每个页面的顶部我有;此外，我的变量，reg表单和登录表单都在一个PHP外壳下):
变量:
<?php
error_reporting(E_ALL ^ E_NOTICE);
$reg = $_POST['reg'];
//initializing registration variables to prevent errors
$fn = ""; //first name
$ln = ""; //last name
$em = ""; //email
$em2 = ""; //email 2
$pass = ""; //password
$bday = ""; //birthday
$sud = ""; //sign up date
$em_check =""; //check if email exists
//registration variables + form
$fn = mysqli_real_escape_string($con, $_POST['first_name']);
$ln = mysqli_real_escape_string($con, $_POST['last_name']);
$em = mysqli_real_escape_string($con, $_POST['email']);
$em2 = mysqli_real_escape_string($con, $_POST['email2']);
$pass = mysqli_real_escape_string($con, $_POST['password']);
$bday = date("Y");
$sud = date("Y-m-d H:i:s"); // Year - Month - Day
登记表:
if(isset($_POST['reg'])) {
if($em==$em2) {
//check if email already exists
$emSQLI = "SELECT email FROM `users` WHERE email='$em'";
$em_check = mysqli_query($con, $emSQLI); //checks whether both entered emails are identical
$check = mysqli_num_rows($em_check); //count the amount of rows where email = $em
if ($check == 0) {
//check if all fields have been filled
if($fn && $ln && $em && $em2 && $pass && $bday) {
//check the maximum length of relevant fields
if(strlen($fn)>90||strlen($ln)>90) {
echo "Maximum limit for first/last names is 90 characters.";
}
else{
if (strlen($pass)<6||strlen($pass)>99) {
echo "Password must be between 6 and 99 characters long.";
}
else {
$pass = md5($pass);
$regSQLI = "INSERT INTO users (id, email, birth_date, first_name, last_name, password, sign_up_date, activated) VALUES ('','$em','$bday','$fn','$ln','$pass','$sud','0')";
$regQuery = mysqli_query($con, $regSQLI);
//variables that will be passed over from the register fields to forthcoming sessions
$_SESSION["email_login"] = $em;
$_SESSION["first_name"] = $fn;
$_SESSION["last_name"] = $ln;
}
}
header("location: profile.php");
exit();
}
else {
echo '<div id="regerrormsg">Please fill in all required fields. </div>';
}
}
else {
echo '<div id="regerrormsg"> Email is already registered. </div>';
}
}
else {
echo '<div id="regerrormsg">Entered emails do not match. </div>';
}
}
登录表单:
if(isset($_POST['email_login']) && isset($_POST['pass_login'])) {
$email_login = mysqli_real_escape_string($con, $_POST['email_login']);
$pass_login = mysqli_real_escape_string($con, $_POST['pass_login']);
$pass_login = md5($pass_login);
$logquery = "SELECT id FROM users WHERE email='$email_login' AND password='$pass_login' LIMIT 1";
$sqli = mysqli_query($con, $logquery);
$userCount = mysqli_num_rows($sqli); // Count number of rows returned
// checks the database for respective items
if ($userCount == 1) { //if the search finds a matching record of the login input form
while( $row = mysqli_fetch_assoc($sqli)) { // use fetch_assoc
$id = $row["id"];
}
$_SESSION["email_login"] = $email_login;
$_SESSION["first_name"] = $fn;
$_SESSION["last_name"] = $ln;
header("location: home.php");
exit();
}
else {
echo '<div id="regerrormsg">Login information is invalid. </div>';
}
}
最后，显示名字的概要页面:
<?php
session_start();
include ( "./inc/connect.inc.php");
if(!isset($_SESSION["email_login"])) {
header("location: index.php");
exit();
}
else {
}
?>
<?php
echo "Delighted to have you here, " .$_SESSION["first_name"]." ".$_SESSION["last_name"].".";
?>
我卡住了，希望能帮助解决这个问题，谢谢!
编辑:这里是html代码:
登录表单:
<form action="index.php" method="POST">
<input type="email" name="email_login" size="60" placeholder="Email" /><br /><br /><br />
<input type="password" name="pass_login" size="60" placeholder="Password" /><br /><br /><br />
<input type="submit" name="login" id="login" value="LOG IN">
</form>
注册表单:
<form action="index.php" method="POST">
<input type="text" name="first_name" size="15" placeholder="First name" /><br /><br /><br />
<input type="text" name="last_name" size="15" placeholder="Last name" /><br /><br /><br />
<input type="email" name="email" size="15" placeholder="Email" /><br /><br /><br />
<input type="email" name="email2" size="25" placeholder="Re-enter email" /><br /><br /><br />
<input type="password" name="password" size="15" placeholder="New password" /><br /><br /><br />
<p5>Birthyear</p5><br />
<div id="date1" class="datefield">
<input id="birth_year" type="tel" name="birth_year" maxlength="4" placeholder="YYYY" />
</div>
<input type="submit" name="reg" value="Sign Up"><br />
</form>
在您的Log form中，替换此
$logquery = "SELECT id FROM users WHERE email='$email_login' AND password='$pass_login' LIMIT 1";
$sqli = mysqli_query($con, $logquery);
$userCount = mysqli_num_rows($sqli); // Count number of rows returned
// checks the database for respective items
if ($userCount == 1) { //if the search finds a matching record of the login input form
while( $row = mysqli_fetch_assoc($sqli)) { // use fetch_assoc
$id = $row["id"];
}
$_SESSION["email_login"] = $email_login;
$_SESSION["first_name"] = $fn; // -> $fn not defined
$_SESSION["last_name"] = $ln; // -> $ln not defined
header("location: home.php");
exit();
}
else {
echo '<div id="regerrormsg">Login information is invalid. </div>';
}
,
$logquery = "SELECT * FROM users WHERE email='$email_login' AND password='$pass_login' LIMIT 1";
$sqli = mysqli_query($con, $logquery);
$userCount = mysqli_num_rows($sqli); // Count number of rows returned
// checks the database for respective items
if ($userCount == 1) { //if the search finds a matching record of the login input form
while( $row = mysqli_fetch_assoc($sqli)) { // use fetch_assoc
$id = $row["id"];
$_SESSION["email_login"] = $row["email"];
$_SESSION["first_name"] = $row["first_name"]; // -> retrieve the data from the result of the query
$_SESSION["last_name"] = $row["last_name"];
}
// EDIT: i moved the $_SESSION part above, my bad !
header("location: home.php");
exit();
}
else {
echo '<div id="regerrormsg">Login information is invalid. </div>';
}