PHP登录和聊天
我是PHP新手，没有那么多经验 我有两个问题： 首先，我尝试使用XAMPP创建一个登录页面，但它不起作用，正如您所看到的，它非常基本： test2.phpPHP登录和聊天,php,xampp,chat,Php,Xampp,Chat,我是PHP新手，没有那么多经验 我有两个问题： 首先，我尝试使用XAMPP创建一个登录页面，但它不起作用，正如您所看到的，它非常基本： test2.php <?php $connection = mysql_connect("localhost","root","") or die("Couldnt connect to the server!"); mysql_select_db("testdb",$connection) or die("Couldnt connect
<?php
$connection = mysql_connect("localhost","root","") or die("Couldnt connect to the server!");
mysql_select_db("testdb",$connection) or die("Couldnt connect to the database!");
error_reporting(0);
if ($_POST['login']){
if ($_POST['username'] && $_POST['password']){
$username = mysql_real_escape_string($_POST['username']);
$password = mysql_real_escape_string(hash("sha512", $_POST['password']));
$user = mysql_fetch_array(mysql_query("SELECT * FROM 'users' WHERE 'Username'='$username'"));
if ($user == 0){
die("That username doesn't exist! Try making <i>$username</i> today! <a href='test2.php'>← Back</a>");
}
if ($user['Password'] != $password){
die("Incorrect password! <a href='test2.php'>← Back</a>");
}
$salt = hash("sha512",rand().rand().rand());
setcookie("c_user",hash("sha512",$username),time()+24*60*60,"/");
setcookie("c_salt",$salt,time()+24*60*60,"/");
$userID = $user['ID'];
mysql_query("UPDATE 'users' SET 'Salt'='$salt' WHERE 'ID'='$userID'");
die("You are now logged in as $username!");
}
}
include "algor.php";
if ($logged == true){
die("You're already logged in");
}
echo "
<body style='font-family:verdana, sans-serif;'>
<div style='width: 80%; padding: 10px; border:1px solid #e3e3e3; background-color: #fff; color: #000;'>
<h1> Login </h1>
<br/>
<form action='' method='post'>
<table>
<tr>
<td>
<b> Username: </b>
</td>
<td>
<input type='text' name='username' style='padding: 4px;'/>
</td>
</tr>
<tr>
<td>
<b> Password: </b>
</td>
<td>
<input type='password' name='password' style='padding: 4px;'/>
</td>
</tr>
<tr>
<td>
<input type='submit' value='Login' name='login'/>
</td>
</tr>
</table>
<form>
<br/>
<h6> No account? <a href='register.php'> Register! </a> </h6>
</div>
</body>
";
?>
您是否为my_sql设置配置了xampp，如果尚未配置，请在php.ini中进行更改
移除；从这两行
)；extension=php\u mysql.dll
;extension=php_mysqli.dll也不起作用，在登录页面中，如果用户不存在，则会出现“该用户名不存在！立即尝试创建adwqf！”！← 返回“在注册页面中，当您确实注册并收到消息“您的帐户已创建，您现在已登录。”但当我转到phpMyAdmin查看我的表时，它返回空值。我正在尝试像本教程一样执行此操作：
<?php
$connection = mysql_connect("localhost","root","") or die("Couldnt connect to the server!");
mysql_select_db("testdb",$connection) or die("Couldnt connect to the database!");
error_reporting(0);
if ($_POST['register']){
if ($_POST['username'] && $_POST['password']){
$username = mysql_real_escape_string($_POST['username']);
$password = mysql_real_escape_string(hash("sha512", $_POST['password']));
$name = '';
if ($_POST['name']){
$name = mysql_real_escape_string(strip_tags($_POST['name']));
}
$check = mysql_fetch_array(mysql_query("SELECT * FROM 'users' WHERE 'Username' = '$username'"));
if ($check != 0){
die("That username already exist! Try <i>$username".rand(1,50)."</i> insted! <a href='register.php'> ← Back </a>");
}
if (!ctype_alnum($username)){
die("Username contains special charcters! Only numbers and letters are premitted! <a href='register.php'> ← Back </a>");
}
if (strlen($username > 20)){
die("Username must not contain more than 20 chatacters! <a href='register.php'> ← Back </a>");
}
$salt = hash("sha512",rand() . rand() . rand());
mysql_query("INSERT INTO 'users' ('Username','Password','Name','Salt') VALUES ('$username','$password','$name','$salt')");
setcookie("c_user",hash("sha512",$username), time() + 24 * 60 * 60,"/");
setcookie("c_salt",$salt, time() + 24 * 60 * 60 ,"/");
die("Your account has been created and you are now logged in.");
}
}
echo "
<body style='font-family:verdana, sans-serif;'>
<div style='width: 80%; padding: 10px; border:1px solid #e3e3e3; background-color: #fff; color: #000;'>
<h1> Register</h1>
<br/>
<form action='' method='post'>
<table>
<tr>
<td>
<b> Username: </b>
</td>
<td>
<input type='text' name='username' style='padding: 4px;'/>
</td>
</tr>
<tr>
<td>
<b> Password: </b>
</td>
<td>
<input type='password' name='password' style='padding: 4px;'/>
</td>
</tr>
<tr>
<td>
<b> Name: </b>
</td>
<td>
<input type='text' name='name' style='padding: 4px;'/>
</td>
</tr>
<tr>
<td>
<input type='submit' value='Register' name='register'/>
</td>
</tr>
</table>
</form>
";
?>