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我是 php/mysql 的新手，如果我的问题很愚蠢，我很抱歉。我正在尝试使用 php 和 mysql 创建一个注册/登录/注销系统。我的技能不好而且我不是程序员，所以我尝试更改我在网上找到的脚本。它包含文件，index.php，激活 php。login.php、logout.php、register.php。

当我尝试给出的示例时效果很好，但是我对代码进行了相当多的更改，因为我希望用户在寄存器中添加更多值，例如名字、姓氏等，而不仅仅是用户名、密码和电子邮件。所以我更改了代码并在 mysql 数据库上添加了更多列。现在不行了，提示激活时找不到用户，也无法登录。

index.php：是一个非常简单的文件，它有一个 html 表单，询问未知用户是否要登录或注册，并启动会话

logout.php：简单地取消设置会话

登录.php：

 <?php session_start(); ?>
<html>
<body>
    <?php
    if(isset($_POST["user"])){
        $con = mysql_connect("localhost","root","password");
        if (!$con)
          {
          die('Could not connect: ' . mysql_error());
          }

        mysql_select_db("myapp", $con);

        $sql = "SELECT * FROM `users` WHERE `user` LIKE '". mysql_real_escape_string($_POST["user"])
        ."' AND ".
            "`pass` LIKE MD5('". mysql_real_escape_string($_POST["pass"])
        ."') AND ".
            "`active` = 'DONE'";

        $result = mysql_query($sql);

        $found = 0;
        while ($row = mysql_fetch_array($result)) {
            if ($row[1]==$_POST["user"]) {
                $found = 1;
            }
        }

        if ($found) {
        $_SESSION["USER"] = $_POST["user"];
        ?>Thank you for logging in<?
        }
        else {
        ?>User/Pass is wrong!<?
        }

        mysql_close($con);
    }
    else {
    ?>

        Please log-in:<br/>
        <form action="login.php" method="POST">
            User: <input type="text" name="user"><br />
            Pass: <input type="password" name="pass"><br />
            <input type="submit" />
        </form>

    <?php
    }
    ?>

注册.php：

<?php session_start(); ?>
<html>
<body>
<?php
    if(isset($_POST["user"])){
        $con = mysql_connect("localhost","root","password");
        if (!$con)
          {
          die('Could not connect: ' . mysql_error());
          }

        mysql_select_db("myapp", $con);

        $random = rand();

        $sql = "INSERT INTO `myapp`.`users` (`id`, `user`, `pass`, `active`, `firstname`, `lastname`, `mail`) ".
        " VALUES (NULL, '". mysql_real_escape_string($_POST["user"])
        ."', MD5('".mysql_real_escape_string($_POST["pass"])
        ."'), '".mysql_real_escape_string($random)
        ."'), '".mysql_real_escape_string($_POST["firstname"])
        ."'), '".mysql_real_escape_string($_POST["lastname"])
        ."')'".mysql_real_escape_string($_POST["mail"])
        ."');";

        mysql_query($sql);

        mysql_close($con);

        $message = "Please put this url http://localhost/mypage/activate.php?active=" . $random . " in your browser to activate your account.";
        @mail($_POST["mail"], 'Thank you for registering', $message);

        ?>Thank you <?php echo $_POST["user"]; ?> we send you a confirmation e-mail in <?php echo $_POST["mail"]; ?><?php

        echo $message;
    }
    else {
        ?>
        Please register:<br/>
        <form action="register.php" method="POST">
            User: <input type="text" name="user"><br />
            Pass: <input type="password" name="pass"><br />
            firstname:<input type="text" name="firstname"><br />
            lastname:<input type="text" name="lastname"><br />
            mail: <input type="text" name="mail"><br />

            <input type="submit" />
        </form>

        <?php
    }
?>

激活.php：

<?php session_start(); ?>
<html>
<body>
        <?php
    if(isset($_GET["active"])){
        $con = mysql_connect("localhost","root","password");
        if (!$con)
          {
          die('Could not connect: ' . mysql_error());
          }

        mysql_select_db("myapp", $con);

        $sql = "SELECT * FROM `users` WHERE `active` LIKE '".      
mysql_real_escape_string($_GET["active"])."'";

        $result = mysql_query($sql);

        $found = 0;
        while ($row = mysql_fetch_array($result)) {
            $found = 1;
        }

        if ($found) {

        $sql = "UPDATE `users` SET `active` ='DONE'";

        $result = mysql_query($sql);

        ?>Thank you for activating<?
        }
        else {
        ?>Can't find user!<?
        }

        mysql_close($con);
    }
    else {
    ?>Invalid activation<?php
    }
    ?>
</body>
</html>

欢迎任何帮助，谢谢你，很抱歉发了这么长的帖子！！^_^

4

1 回答 1

2

在register.php中，你的 SQL 语法有错误，你有太多的右括号。
像这样替换这部分：

$sql = "INSERT INTO `myapp`.`users` (`id`, `user`, `pass`, `active`, `firstname`, `lastname`, `mail`) VALUES 
   (NULL,". 
   "'". mysql_real_escape_string($_POST["user"])."',".
   "MD5('".mysql_real_escape_string($_POST["pass"])."'),".
   "'".mysql_real_escape_string($random)."',".
   "'".mysql_real_escape_string($_POST["firstname"])."',".
   "'".mysql_real_escape_string($_POST["lastname"])."',".
   "'".mysql_real_escape_string($_POST["mail"])."');";
于 2012-05-24T15:14:12.087 回答