Question

我以前将所有数据存储在000webhost中，今天我决定转移到hostinger。所以..在移动之后我用新的替换旧的mysql_connect信息。好吧，在我测试完之后，一切都运行良好，除了一些回声功能。

检查文件（连接到服务器并进行登录）：

    <?php

    $servidorr = "mysql.XXXX.co.uk";
    $bdd = "XXXXXXXX";
    $usuarioo = "XXXXX";
    $senhaa = "XXXXXXX";


    if (!empty($_POST) AND (empty($_POST['usuario']) OR empty($_POST['senha']))) {
        header("Location: geton"); exit;
    }


    mysql_connect($servidorr, $usuarioo, $senhaa) or trigger_error(mysql_error());

    mysql_select_db($bdd) or trigger_error(mysql_error());

    $usuario = mysql_real_escape_string($_POST['usuario']);
    $senha = mysql_real_escape_string($_POST['senha']);
    $lang = mysql_real_escape_string($_POST['lang']);


    $sql = "SELECT `id`, `nome`, `nivel` FROM `usuarios` WHERE (`usuario` = '". $usuario ."') AND (`senha` = '". sha1($senha) ."') AND (`ativo` = 1) LIMIT 1";
    $updatelang = "UPDATE usuarios SET lang='$lang' WHERE usuario='$usuario'";
    $query = mysql_query($sql);
    if (mysql_num_rows($query) != 1) {

        echo "<script>alert('Oops! Looks like there is something wrong with your login! *perhaps a typo or you did not fill out the fields*'); location.href='geton'</script>"; exit;
    } else {

        $resultado = mysql_fetch_assoc($query);
      mysql_query($updatelang);


        if (!isset($_SESSION)) session_start();

        $_SESSION['UsuarioID'] = $resultado['id'];
        $_SESSION['UsuarioNome'] = $resultado['nome'];
      $_SESSION['usuario'] = $resultado['usuario'];
        $_SESSION['UsuarioNivel'] = $resultado['nivel'];
      $_SESSION['lang'] = $resultado['lang'];

        header("Location: http://mapmaking.zz.mu/pages/home"); exit;
    }

    ?>


Home file (these echos are just for testing and this is not the original file, the original one has the same php stuff, except the echo functions, those are in random lines):

<?php


if (!isset($_SESSION)) session_start();

  $tlang = $_SESSION['UsuarioLang'];
  $aclevel = $_SESSION['UsuarioNivel'];
  $nick = $_SESSION['UsuarioNome'];

$neededal = 1;
if (!isset($_SESSION['UsuarioID']) OR ($_SESSION['UsuarioNivel'] < $neededal)) {
    session_destroy();
    header("Location: http://inside.mapmaking.uk.to/geton"); exit;


}

session_start();

echo $tlang;
echo $aclevel;
echo $nick;
echo "$level$tlang$tlang";


?>

[这个基本上开始会话并检查连接的用户访问级别是否为1]

Echo $ tlang 不起作用！ :(不知怎的，它没有，我不知道为什么; _;

希望你们帮助我，谢谢!!

Answer 1

$ _ SESSION ['lang']！= $ _SESSION ['UsuarioLang']

您为第一个值分配值，但期望第二个值。

$_SESSION['lang'] = $resultado['lang'];

$tlang = $_SESSION['UsuarioLang'];

Answer 2

更改此行：

$_SESSION['lang'] = $resultado['lang'];

以下内容：

$_SESSION['UsuarioLang'] = $resultado['lang'];

您还应该在没有isset检查的情况下致电session_start()。此外，您应该考虑使用&&代替AND和||而不是OR，因为PHP有奇怪的operator precedence rules（作业=具有比AND或OR更高的优先级。

PHP＆amp; MYSQL：Echo无法正常工作

2 个答案: