页面发布数据，即使验证显示错误

时间：2014-05-23 02:50:29

标签： php validation hash passwords

我已经在我的注册页面上创建了验证表单输入的代码，然后将页面帖子提交回来自html表单的输入数据。然后，php验证用户是否在所有框中输入输入，还指定了ises字符和空白区域，电子邮件格式正确，密码长于6个字符，并将密码与确认密码进行比较。

如果测试失败，页面会显示各种错误。一切正常。我的问题是，即使验证抛出错误并显示错误，它也不会阻止它被发布到下一页，然后将数据添加到mysql数据库。我无法弄清楚如何让错误报告停止发送数据，直到输入正确，我已添加下面的相关PHP。

任何帮助都会得到最好的回复，我是php的新手，所以不了解很多方面，但已经看了很多资源试图解决这个问题而没有成功。此外，我想在发布到下一个php进程页面之前对密码进行哈希处理，但是我对我读过的许多资源的内容感到非常困惑。

<?php

// define variables and set to empty values
$usernameErr = $emailErr = $passwordErr = $clubnameErr = "";
$username = $email = $password = $clubname = "";

if ($_SERVER["REQUEST_METHOD"] == "POST") {
  $username = test_input($_POST["name"]);
  $email = test_input($_POST["email"]);
  $password = test_input($_POST["website"]);
  $clubname = test_input($_POST["comment"]);
}

function test_input($data) {
  $data = trim($data);
  $data = stripslashes($data);
  $data = htmlspecialchars($data);
  return $data;
}
if ($_SERVER["REQUEST_METHOD"] == "POST") {
  if (empty($_POST["username"])) {
    $usernameErr = "**Name is required**";
  } else {
    $username = test_input($_POST["username"]);
    if (!preg_match("/^[a-zA-Z ]*$/",$username)) {
      $usernameErr = "**Only letters and white space allowed**";
    }
  }

  if (empty($_POST["email"])) {
    $emailErr = "**Email is required**";
  } else {
    $email = test_input($_POST["email"]);
    if (!preg_match("/([\w\-]+\@[\w\-]+\.[\w\-]+)/",$email)) {
     $emailErr = "**Invalid email format**";
    }
  }

  if (empty($_POST["password"])) {
    $passwordErr = "**Password is required**";
  } else {
    $password = test_input($_POST["password"]);
  }

    if (empty($_POST["confirmpassword"])) {
    $confirmpasswordErr = "**Please confirm password**";
  } else {
    $confirmpassword = test_input($_POST["confirmpassword"]);
  }

  if($_POST['password'] != $_POST['confirmpassword']){
   $confirmpasswordErr = "**Passwords did not match**";
   }

   if($_POST["password"] && strlen(trim($_POST["password"])) < 6)
    {
        $passwordErr = "**Password needs to be at least 6 characters**";
    } 

  if (empty($_POST["clubname"])) {
    $clubnameErr = "**Club Name is required**";
  } else {
    $clubname = test_input($_POST["clubname"]);
    if (!preg_match("/^[a-zA-Z ]*$/",$clubname)) {
      $clubnameErr = "**Only letters and white space allowed**";
    }
  }
}

=============================================== ============================================ 完整的页面代码

include_once 'includes/register.inc.php';

// define variables and set to empty values
$usernameErr = $emailErr = $passwordErr = $clubnameErr = "";
$username = $email = $password = $clubname = "";

if ($_SERVER["REQUEST_METHOD"] == "POST") {
  $username = test_input($_POST["name"]);
  $email = test_input($_POST["email"]);
  $password = test_input($_POST["website"]);
  $clubname = test_input($_POST["comment"]);
}

function test_input($data) {
  $data = trim($data);
  $data = stripslashes($data);
  $data = htmlspecialchars($data);
  return $data;
}
if ($_SERVER["REQUEST_METHOD"] == "POST") {
  if (empty($_POST["username"])) {
    $usernameErr = "**Name is required**";
  } else {
    $username = test_input($_POST["username"]);
        if (!preg_match("/^[a-zA-Z ]*$/",$username)) {
      $usernameErr = "**Only letters and white space allowed**";
    }
  }

  if (empty($_POST["email"])) {
    $emailErr = "**Email is required**";
  } else {
    $email = test_input($_POST["email"]);
    if (!preg_match("/([\w\-]+\@[\w\-]+\.[\w\-]+)/",$email)) {
      $emailErr = "**Invalid email format**";
    }
  }

  if (empty($_POST["password"])) {
    $passwordErr = "**Password is required**";
  } else {
    $password = test_input($_POST["password"]);
  }

    if (empty($_POST["confirmpassword"])) {
    $confirmpasswordErr = "**Please confirm password**";
  } else {
    $confirmpassword = test_input($_POST["confirmpassword"]);
  }

  if($_POST['password'] != $_POST['confirmpassword']){
   $confirmpasswordErr = "**Passwords did not match**";
   }

   if($_POST["password"] && strlen(trim($_POST["password"])) < 6)
    {
        $passwordErr = "**Password needs to be at least 6 characters**";
    } 

  if (empty($_POST["clubname"])) {
    $clubnameErr = "**Club Name is required**";
  } else {
    $clubname = test_input($_POST["clubname"]);
    if (!preg_match("/^[a-zA-Z ]*$/",$clubname)) {
      $clubnameErr = "**Only letters and white space allowed**";
    }
  }
}


echo $_POST['username'];
echo $_POST['email'];
echo $_POST['password'];
echo $_POST['confirmpassword'];
echo $_POST['clubname'];
?>



<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
<style type="text/css">
#form {
    width: 80%;
    margin-left: auto;
    margin-right: auto;
}
</style>
</head>

<body>
<div id="form">
<form id="registermember" name="registermember" method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
    <div align="center">
          <fieldset>
            <legend style="font-weight: bolder; font-size: large;">Register Members</legend>

            <table width="100%" border="0" cellspacing="0" cellpadding="0">
              <tr>
                <td width="33%"><div align="right"><span style="color: #000000; font-weight: bold;">Members Name:</span></div></td>
                <td width="33%"><div align="center"><span style="color: #000000; font-weight: bold;">
                <input name="username" type="text" id="username" value="<?php echo $username;?>" size="40%">
                </span></div>
                <td width="33%"><div align="left"><span class="error" style="color: #FF0004; font-weight: bold;"><?php echo $usernameErr;?></span></div></td>
              </tr>
              <tr>
                <td><div align="center"><span style="color: #000000; font-weight: bold;">
                </span></div>              <span style="color: #000000; font-weight: bold;">
                  <label for="email">

                  <div align="center">
                    <div align="right"><span style="color: #000000; font-weight: bold;">Members Email:</span></div>
                  </div>
                  <span style="color: #000000; font-weight: bold;"></span><span style="color: #000000; font-weight: bold;">
                  </label>
                </span></td>
                <td><div align="center"><span style="color: #000000; font-weight: bold;">
                <input name="email" type="text" id="email" value="<?php echo $email;?>" size="40%">
                </span></div>          
                <td style="color: #FF0004"><div align="left"><span style="color: #FF0004; font-weight: bold;"><span class="error"><?php echo $emailErr;?></span></span></div></td>
              </tr>
              <tr>
                <td><div align="center"><span style="color: #000000; font-weight: bold;">
                </span></div>              <span style="color: #000000; font-weight: bold;">
                  <label for="password2">
                  <div align="center">
                    <div align="right"><span style="color: #000000; font-weight: bold;">Members Password:</span></div>
                  </div>
                  <span style="color: #000000; font-weight: bold;"></span><span style="color: #000000; font-weight: bold;">
                  </label>
                </span></td>
                <td><div align="center"><span style="color: #000000; font-weight: bold;">
                <input name="password" type="password" id="password" size="40%">
                </span></div>          
                <td style="color: #FF0004"><div align="left"><span style="color: #FF0004; font-weight: bold;"><span class="error"><?php echo $passwordErr;?></span></span></div></td>
              </tr>
              <tr>
                <td><div align="center"><span style="color: #000000; font-weight: bold;">
                </span></div>              <span style="color: #000000; font-weight: bold;">
                  <label for="confirmpassword">
                  <div align="center">
                    <div align="right"><span style="color: #000000; font-weight: bold;">Confirm Password:</span></div>
                  </div>
                  <span style="color: #000000; font-weight: bold;"></span><span style="color: #000000; font-weight: bold;">
                  </label>
                </span></td>
                <td><div align="center"><span style="color: #000000; font-weight: bold;">
                <input name="confirmpassword" type="password" id="confirmpassword" size="40%">
                </span></div>          
                <td style="color: #FF0004"><div align="left"><span style="color: #FF0004; font-weight: bold;"><span class="error"><?php echo $confirmpasswordErr;?></span></span></div></td>
              </tr>
              <tr>
                <td><div align="center"><span style="color: #000000; font-weight: bold;">
                </span></div>              <span style="color: #000000; font-weight: bold;">
                  <label for="clubname2">
                  <div align="center">
                    <div align="right"><span style="color: #000000; font-weight: bold;">Members Club:</span></div>
                  </div>
                  <span style="color: #000000; font-weight: bold;"></span><span style="color: #000000; font-weight: bold;">
                  </label>
                </span></td>
                <td><div align="center"><span style="color: #000000; font-weight: bold;">
                <input name="clubname" type="text" id="clubname" value="<?php echo $clubname;?>" size="40%">
                </span></div>          
                <td style="color: #FF0004"><div align="left"><span style="color: #FF0004; font-weight: bold;"><span class="error"><?php echo $clubnameErr;?></span></span></div></td>
              </tr>
              <tr>
                <td>&nbsp;</td>
                <td><div align="center">
                  <p>
                    <input name="submitmember" type="submit" id="submitmember" formaction="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" formmethod="POST" value="Add Member">
                  </p>
                </div>                
                <td style="color: #FF0004">&nbsp;</td>
              </tr>
            </table>
          </fieldset>
          </form>
    </div>



</body>
</html>

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