Question

首先我要说的是，我已经在这里和其他网站上阅读了大约15个类似的帖子，试图在发布之前解决我的问题。

我用一些php和mysql测试网站。一些信息：

我构建了本地托管的网站，然后导出到000 webhost。为了测试php和mysql函数，这甚至是必要的吗？我在本地有一个mysql数据库。这会导致问题吗？

我有两个问题。

在运行任何php脚本的页面上，我收到以下警告：

警告：出于安全原因，在第2行的/home/a2575478/public_html/Login.php中已禁用virtual（）

警告：mysqli_query（）要求参数1为mysqli，在第37行的/home/a2575478/public_html/Login.php中给出为null

警告：mysqli_error（）要求参数1为mysqli，在第37行的/home/a2575478/public_html/Login.php中给出为null

我知道这些警告与不推荐使用的mysql_ *函数有关，但在修复已弃用的函数时遇到问题

2

现在，当我尝试在本地访问网页时，我得到的只是一个＆＃34;网页不可用＆＃34;错误。这是由于错误还是只是尝试在本地运行php？

网站可以访问here

如果您需要更多信息，请与我们联系。

以下代码。

的login.php

    <?php @session_start(); ?>
    <?php virtual('/Connections/logincon.php'); ?>
    <?php
    if (!function_exists("GetSQLValueString")) {
    function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "") 
    {
      if (PHP_VERSION < 6) {
        $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
      }

      $theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);

      switch ($theType) {
        case "text":
          $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
          break;    
        case "long":
        case "int":
          $theValue = ($theValue != "") ? intval($theValue) : "NULL";
          break;
        case "double":
          $theValue = ($theValue != "") ? doubleval($theValue) : "NULL";
          break;
        case "date":
          $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
          break;
        case "defined":
          $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
          break;
      }
      return $theValue;
    }
    }


    $query_Login = "SELECT * FROM `user`";
    $Login = mysqli_query($logincon,$query_Login) or die(mysqli_error($logincon));
    $row_Login = mysql_fetch_assoc($Login);
    $totalRows_Login = mysql_num_rows($Login);
    mysqli_select_db($database_logincon, $logincon);
    ?>
    <?php
    // *** Validate request to login to this site.
    if (!isset($_SESSION)) {
      session_start();
    }

    $loginFormAction = $_SERVER['PHP_SELF'];
    if (isset($_GET['accesscheck'])) {
      $_SESSION['PrevUrl'] = $_GET['accesscheck'];
    }

    if (isset($_POST['Username'])) {
      $loginUsername=$_POST['Username'];
      $password=$_POST['Password'];
      $MM_fldUserAuthorization = "UserLevel";
      $MM_redirectLoginSuccess = "/Account.php";
      $MM_redirectLoginFailed = "/Login.php";
      $MM_redirecttoReferrer = true;
      mysql_select_db($database_logincon, $logincon);

      $LoginRS__query=sprintf("SELECT Username, Password, UserLevel FROM `user` WHERE Username=%s AND Password=%s",
      GetSQLValueString($loginUsername, "text"), GetSQLValueString($password, "text")); 

      $LoginRS = mysql_query($LoginRS__query, $logincon) or die(mysql_error());
      $loginFoundUser = mysql_num_rows($LoginRS);
      if ($loginFoundUser) {

    $loginStrGroup  = mysql_result($LoginRS,0,'UserLevel');

    if (PHP_VERSION >= 5.1) {session_regenerate_id(true);} else {session_regenerate_id();}
    //declare two session variables and assign them
    $_SESSION['MM_Username'] = $loginUsername;
    $_SESSION['MM_UserGroup'] = $loginStrGroup;       

    if (isset($_SESSION['PrevUrl']) && true) {
      $MM_redirectLoginSuccess = $_SESSION['PrevUrl'];  
    }
    header("Location: " . $MM_redirectLoginSuccess );
  }
  else {
    header("Location: ". $MM_redirectLoginFailed );
  }
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<link href="CSS/Layout.css" rel="stylesheet" type="text/css"  />
<link href="CSS/Menu.css" rel="stylesheet" type="text/css"  />
<link href="CSS/Menu.css" rel="stylesheet" type="text/css" />
<link href="/SpryAssets/SpryValidationTextField.css" rel="stylesheet" type="text/css" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script src="/SpryAssets/SpryValidationTextField.js" type="text/javascript"></script>
</head>

<body>
<div id="Holder">
<div id="Header"></div>
<div id="NavBar">
    <nav>
        <ul>
            <li><a href="Login.php">Login</a></li>
            <li><a href="Register.php">Register</a></li>
            <li><a href="ForgotPassword.php">Forgot Password</a></li>
        </ul>
    </nav>
</div>
<div id="Content">
    <div id="PageHeading">
      <h1>Home Page </h1>
    </div>
    <div id="ContentLeft">
      <h2>This is a test page for a project in progress</h2>
      <p>&nbsp;</p>
      <h6>A work in progress.   </h6>
    </div>
    <div id="ContentRight">
      <form id="form1" name="form1" method="POST" action="<?php echo $loginFormAction; ?>">
        <span id="sprytextfield1">
        <label for="LoginForm"></label>
        <span class="textfieldRequiredMsg">A value is required.</span></span>
        <table width="400" border="0" align="center">
          <tr>
            <td><h6><span id="sprytextfield2">
              <label for="Username"></label>
              Username:<br />
              <br />
              <input name="Username" type="text" class="StyleTxtField" id="Username" />
              </span></h6>
            <span><span class="textfieldRequiredMsg">A value is required.</span></span></td>
            </tr>
          <tr>
            <td>&nbsp;</td>
            </tr>
          <tr>
            <td><h6><span id="sprytextfield3">
              <label for="Password"></label>
              Password:<br />
              <br />
              <input name="Password" type="text" class="StyleTxtField" id="Password" />
              </span></h6>
            <span><span class="textfieldRequiredMsg">A value is required.</span></span></td>
            </tr>
          <tr>
            <td>&nbsp;</td>
            </tr>
          <tr>
            <td><input type="submit" name="LoginButton" id="LoginButton" value="Login" /></td>
            </tr>
          <tr>
            <td>&nbsp;</td>
            </tr>
          </table>
      </form>
    </div>
 </div>
<div id="Footer"> </div>

</div>
<script type="text/javascript">
var sprytextfield1 = new Spry.Widget.ValidationTextField("sprytextfield1");
var sprytextfield2 = new Spry.Widget.ValidationTextField("sprytextfield2");
var sprytextfield3 = new Spry.Widget.ValidationTextField("sprytextfield3");
</script>
</body>
</html>
<?php
mysql_free_result($Login);
?>

Logincon.php，管理数据库连接

<?php
# FileName="Connection_php_mysql.htm"
# Type="MYSQL"
# HTTP="true"
$hostname_logincon = "172.16.1.72:3306";
$database_logincon = "logindb";
$username_logincon = "root";
$password_logincon = "boombox";
$logincon = mysql_pconnect($hostname_logincon, $username_logincon, $password_logincon) or trigger_error(mysql_error(),E_USER_ERROR); 
?>

提前感谢您的回复

Answer 1

您正在混合mysql和mysqli个功能。你不能这样做。 logincon.php需要使用mysqli_connect，而不是mysql_pconnect。

$logincon = mysqli_connect($hostname_logincon, $username_logincon, $password_logincon, $database_logincon) or trigger_error(mysqli_connect_error(),E_USER_ERROR);

在主脚本中，您应该使用mysqli_real_escape_string代替mysql_real_escape_string。

$theValue = myqsli_real_escape_string($logincon, $theValue);

您必须使用mysqli_fetch_assoc和mysqli_num_rows。

Answer 2

最后，我只是将mysql_ *函数更改为mysqli_ *函数。我的问题现在在脚本和我的Mysql数据库之间。我会提出一个更具相关性的新问题。

再次感谢您的帮助。

警告：mysqli_query（）期望参数1为mysqli，给定字符串

2 个答案: