我刚刚完成了一个完整的登录并在PHP中注册了systsem，但我的问题是我还没有使用任何会话。我是PHP的新手，我之前从未使用过会话。我想要做的是，当我点击登录按钮时，它的主页应该在该页面的正文中打开用户名...但由于该会话在header.inc.php中关联了代码我的主页无法进行load ..it显示当我点击登录按钮时找不到网页..可以任何人告诉我我的错误在哪里..这是我第一次在stackoverflow中提问。对于任何错误抱歉，并提前感谢。
在我的所有代码下面工作： 1. index.php主页
<code>
<!doctype html>
<?php include( "./inc/header.inc.php"); ?>
<?php
$reg=@$_POST['reg'];
//declaring variables tp prevent error
$fn="";// first name
$ln="";//last name
$un="";//username
$em="";//email
$em2="";//email2
$pswd="";//password
$pswd2="";//password2
$d="";//sign up date
$u_check="";//check if username exist
//registration form
$fn=strip_tags(@$_POST['fname']);
$ln=strip_tags(@$_POST['lname']);
$un=strip_tags(@$_POST['username']);
$em=strip_tags(@$_POST['email']);
$em2=strip_tags(@$_POST['email2']);
$pswd=strip_tags(@$_POST['password']);
$pswd2=strip_tags(@$_POST['password2']);
$d=date("Y-m-d");//Year-Month_Day
if($reg){
if($em=$em2){
//check if user already exist
$u_check = mysqli_query( $db_conx ,"SELECT username FROM user WHERE `username = '$un'");`
// count the amount of the row where username= $un
$check = mysqli_num_rows($u_check);
if($check == 0){
//check all the field have been filled in
//check password match
if($pswd==$pswd2){
//Encrypt Password and Password2 using Md5 before sending to database
$pwsd=md5($pswd);
$pwsd2=md5($pswd2);
$query=mysqli_query( $db_conx , "INSERT INTO user VALUES ('', '$un' , '$fn', '$ln' , '$em' , '$pswd' , '$d' , '0')");
die("<h2>Welcome To FriendsBook</h2> Login To your Account to Get Started...");
}
else{
echo "Your Password Don'T Match!";
}
}
else{
echo "UserName Already Taken..!";
}
}
else{
echo "Your Email Doesn't Match!..";
}
}
// User Login code
if(null!==(@$_POST["user_login"]) && null!==(@$_POST["password_login"])){
$password_login_md5 = md5($password_login);
$sql = mysqli_query($db_conx , "SELECT id FROM user WHERE username = '$user_login' AND password = '$password_login_md5' LIMIT 1"); //query
// check for existance
$userCount = mysqli_num_rows($sql); //Count The Name Of and return
if($userCount==1){
while($row = mysqli_fetch_array($sql , MYSQLI_NUM)){
$id = $row["id"];
}
session_start();
$_SESSION["user_login"] = $user_login;
header("location: home.php");
exit();
}else{
echo 'That Information is Incorrect , Try Again !!';
exit();
}
}
?>
<div style="width:800px; margin:0px auto 0px auto;">
<table>
<tr>
<td width="60%" valign="top">
<h2>Already a Member? Sign in below! </h2>
<form action="index.php" method="POST">
<input type="text" name="user_login" size="25" placeholder="UserName" /><br /><br />
<input type="text" name="password_login" size="25" placeholder="Password" /><br /><br />
<input type="submit" name="login" value="Login" >
</form>
</td>
<td width="40%" valign="top">
<h2>Sign Up Below</h2>
<form action="#" method="POST">
<input type="text" name="fname" maxlength="25" placeholder="First Name" title="Maximum Limit Of First Name is 25 Character" required /><br /><br />
<input type="text" name="lname" maxlength="25" placeholder="Last Name" title="Maximum Limit Of Last Name is 25 Character" required/><br /><br />
<input type="text" name="username" maxlength="25" placeholder="UserName" title="Maximum Limit Of Username is 25 Character" required/><br /><br />
<input type="email" name="email" maxlength="35" placeholder="Email" pattern="[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,3}$" required /><br /><br />
<input type="email" name="email2" maxlength="35" placeholder="Re-Enter Email" pattern="[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,3}$" required/><br /><br />
<input type="password" name="password" min="8" maxlength="25" placeholder="Password" pattern="(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{8,}"
title="Must contain at least one number and one uppercase and lowercase letter,
and at least 8 or more characters" required /><br /><br />
<input type="password" name="password2" min="8" maxlength="25" placeholder="Re-Enter Password" pattern="(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{8,}"
title="Must contain at least one number and one uppercase and lowercase letter,
and at least 8 or more characters" required/><br /><br />
<input type="submit" name="reg" value="Sign Up!" >
</form>
</td>
</tr>
</table>
<?php include( "./inc/footer.inc.php");?>`
2.header.inc.php代码
<?php include( "./inc/connect.inc.php");
session_start();
// Store Session Data
if(isset($_SESSION["user_login"])){
header("location: home.php");
}
else
}
?>
<html>
<head>
<title>FriendsBook</title>
<link rel="stylesheet" type="text/css" href="css/style.css"/>
</head>
<body>
<div class="headerMenu">
<div id="wrapper">
<div class="logo">
<img src="img/friendsbooklogo.PNG"/>
</div>
<div class="Search_box">
<form action="Search.php" method="GET" id="search">
<input type="text" name="q" size="60" placeholder="Search..."/>
</form>
</div>
</div>
<div id="menu">
<a href="#">Home</a>
<a href="#">About</a>
<a href="#">Sign Up</a>
<a href="#">Sign IN</a>
</div>
</div>
</body>
3.connect.inc.php
<?php
$db_conx = mysqli_connect("localhost","root","" , "friendsbook" );
?>
4.logout.php
<?php
session_start();
session_destroy();
header("Location : index.php");
?>
5.home.php
<?php
include( "./inc/header.inc.php");
echo $_SESSION["user_login"];
?>