PHP表单验证（不知道如何将其拆分为两个不同的页面）

时间：2015-09-29 20:43:19

标签： php html ajax forms

我正在使用PHP中的联系表单。我对PHP的了解几乎不存在。

我已经尝试了一段时间来获取HTML表单以提交到PHP表单以使其文本字段经过验证并且如果空白但仍然无法正常工作。我也不知道AJAX，否则，会尝试这样做。

所以，已经在HTML页面中使用了PHP自编。

这是当前版本：

<?php
// define variables and set to empty values
$firstNameErr = $lastNameErr = $emailErr = $messageErr = "";
$first_name = $last_name = $email = $message = "";

if ($_SERVER["REQUEST_METHOD"] == "POST") {
   if (empty($_POST["first-name"])) {
     $firstNameErr = "First name is required";
   } else {
     $first_name = test_input($_POST["first-name"]);
   }

    if (empty($_POST["last-name"])) {
     $lastNameErr = "Last name is required";
   } else {
     $last_name = test_input($_POST["last-name"]);
   }

   if (empty($_POST["email"])) {
     $emailErr = "Email is required";
   } else {
     $email = test_input($_POST["email"]);
   }

   if (empty($_POST["message"])) {
     $messageErr = "Message is required";
   } else {
     $message = test_input($_POST["message"]);
   }
}

function test_input($data) {
   $data = trim($data);
   $data = stripslashes($data);
   $data = htmlspecialchars($data);
   return $data;
}
?>

这是同一页面上的表格：

<form class="ui form"  method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
  <div class="field">
    <label>First Name</label>
    <input name="first-name" id="first-name" placeholder="First Name" type="text">
     <span class="error">* <?php echo $firstNameErr;?></span>
  </div>
  <div class="field">
    <label>Last Name</label>
    <input name="last-name" id="last-name" placeholder="Last Name" type="text">
     <span class="error">* <?php echo $lastNameErr;?></span>
  </div>
    <div class="field">
    <label>Email</label>
    <input name="email" id="email" placeholder="Email" type="email">
     <span class="error">* <?php echo $emailErr;?></span>
  </div>
  <div class="field">
    <label>Message</label>
    <textarea rows="2" placeholder="Please type in your message" name="message" id="message"></textarea>
     <span class="error">* <?php echo $messageErr;?></span>
  </div>

  <button class="ui button" type="submit">Submit</button>
</form>

有没有办法在两个不同的页面中执行此操作，即第一页中的表单，并以会话模式转移到第二页？或者这是否适用于商业网站？请告诉我。谢谢。

附录 

   if (empty($_POST["email"])) {
     $emailErr = "Email is required";
   } else {
      $email = filter_vars(test_input($_POST["email"], FILTER_VALIDATE_EMAIL));
   }

附录2

我把这个包含在php的底部，即在函数test_input之后。header('location: php_mailer_form.php');这是正确的位置吗？

但是出于某种原因，当我尝试访问contact.php表单时，它甚至不显示，它只是直接转到我在php_mailer_form.php底部的错误表单。 

 if(!$mail->send()) {
        header('location: url/contactError.html');

    } else {
        header('location: url/contactResult.html');

    }

为什么呢？ （如果我需要提供更多信息，请告诉我）。

附录3 

<?php

session_start();

$first_name = $_SESSION['first-name'];
$last_name = $_SESSION['last-name'];
$email = $_SESSION['email'];
$message = nl2br($_SESSION['message']);

require 'PHPMailerAutoload.php';

$mail = new PHPMailer;

//$mail->SMTPDebug = 3;                               // Enable verbose debug output

$mail->isSMTP();                                      // Set mailer to use SMTP
$mail->Host = 'host_specified';  // Specify main and backup SMTP servers
$mail->SMTPAuth = true;                               // Enable SMTP authentication
$mail->Username = 'email_specified';                 // SMTP username
$mail->Password = 'password_specified';                           // SMTP password
$mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
$mail->Port = 587; 

$mail->addReplyTo( $email, $first_name );
$mail->addAddress( $email, $first_name );
$mail->addAddress( 'email_specified', 'Staff' );
$mail->From = 'email_specified';
$mail->FromName = 'Staff';


$mail->isHTML(true);                                  // Set email format to HTML

$mail->Subject = 'Hotel Room Request';
$mail->Body    = $message; 

$mail->AltBody = 'To view the message, please use an HTML compatible email viewer!';

if(!$mail->send()) {
    header('location: url/contactError.html');

} else {
    header('location: url/contactResult.html');

}

附录4 

<!doctype html>

<html lang="en">
<head>
  <meta charset="utf-8">

  <title>Contact</title>



  <!--[if lt IE 9]>
  <script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
  <![endif]-->
  <style type="text/css">
    .ui.fixed.sticky + p {
        margin-top: 39px;
      }

      .error {
        color: #FF0000;
      }

  </style>
</head>


<body>

<?php
session_start(); //allows use of session variables

if ($_SERVER["REQUEST_METHOD"] == "POST") {
   if (!isset($_POST["first-name"])) {
     $firstNameErr = "First name is required";
   } else {
     $first_name = test_input($_POST["first-name"]);
   }

    if (!isset($_POST["last-name"])) {
     $lastNameErr = "Last name is required";
   } else {
     $last_name = test_input($_POST["last-name"]);
   }

   if (!isset($_POST["email"])) {
     $emailErr = "Email is required";
   } else {
     $email = test_input($_POST["email"]);
   }

   if (!isset($_POST["message"])) {
     $messageErr = "Message is required";
   } else {
     $message = test_input($_POST["message"]);
   }

   if(isset($first_name) && isset($last_name) && isset($email) && isset($message))
   {
     $_SESSION['first_name'] = $first_name;
     $_SESSION['last_name'] = $last_name;
     $_SESSION['email'] = $email;
     $_SESSION['message'] = $message;

     header("Location: contact9Sessions.php");
   }
}

function test_input($data) {
   $data = trim($data);
   $data = stripslashes($data);
   $data = htmlspecialchars($data);
   return $data;
}
?>

<div class="ui container">
<div class="ui segment">
  <div>

    <div class="ui fluid five item tabular menu">
      <a class="item" href="index.html">Home</a>
      <a class="item" href="about.html">About</a>
      <a class="item" href="rooms.html">Rooms Info & Rates</a>
      <a class="item" href="book.html">To Book</a>
      <a class="item" href="contact.html">Contact</a>
    </div>

  </div>

<div class="ui two column stackable grid">

<div class="ten wide column">

<form class="ui form"  method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
  <div class="field">
    <label>First Name</label>
    <input name="first-name" id="first-name" placeholder="First Name" type="text">
     <?php if(isset($firstNameErr)) print ('<span class="error">* ' . $firstNameErr . '</span>'); ?>
  </div>
  <div class="field">
    <label>Last Name</label>
    <input name="last-name" id="last-name" placeholder="Last Name" type="text">
     <?php if(isset($lastNameErr)) print ('<span class="error">* ' . $lastNameErr . '</span>'); ?>
  </div>
    <div class="field">
    <label>Email</label>
    <input name="email" id="email" placeholder="Email" type="email">
     <?php if(isset($emailErr)) print ('<span class="error">* ' . $emailErr . '</span>'); ?>
  </div>
  <div class="field">
    <label>Message</label>
    <textarea rows="2" placeholder="Please type in your message" name="message" id="message"></textarea>
     <?php if(isset($messageErr)) print ('<span class="error">* ' . $messageErr . '</span>'); ?>
  </div>

  <button class="ui button" type="submit">Submit</button>
</form>
  </div>

  <div class="six wide column">
    <br><br>
    <img class="ui centered large bordered rounded image" src="images/tobereplaced.jpg">
  </div>
</div>

</div>

<div class="ui two column grid">
  <div class="ui left aligned ">
    <p>Left Footer Stuff Here</p>
  </div>

  <div class="ui right aligned">
    <p>Right Footer Stuff Here</p>
  </div>

</div>

</div>



</body>
</html>

2 个答案:

答案 0 :(得分：2)

这是一个基本表单发送示例。这一切都可以在一页上。在所有html加载到浏览器之前的PHP顶部，{h}页面的<form>中的任何位置<body> html：

修改 我已更新代码以包含您的PHP Emailer。

<?php
class EmailEngine
    {
        public  static  function Send($settings = false)
            {
                $email          =   (!empty($settings['email']))? $settings['email']:false;
                $first_name     =   (!empty($settings['first-name']))? $settings['first-name']:false;
                $last_name      =   (!empty($settings['last-name']))? $settings['last-name']:false;
                $message        =   (!empty($settings['message']))? $settings['message']:false;
                $alt_message    =   (!empty($settings['alt_message']))? $settings['alt_message']:'To view the message, please use an HTML compatible email viewer!';

                require(__DIR__.'/PHPMailerAutoload.php');
                $mail = new PHPMailer;
                $mail->isSMTP();                                      // Set mailer to use SMTP
                $mail->Host = 'host_specified';  // Specify main and backup SMTP servers
                $mail->SMTPAuth = true;                               // Enable SMTP authentication
                $mail->Username = 'email_specified';                 // SMTP username
                $mail->Password = 'password_specified';                           // SMTP password
                $mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
                $mail->Port = 587; 
                $mail->addReplyTo( $email, $first_name );
                $mail->addAddress( $email, $first_name );
                $mail->addAddress( 'email_specified', 'Staff' );
                $mail->From = 'email_specified';
                $mail->FromName = 'Staff';
                $mail->isHTML(true);                                  // Set email format to HTML
                $mail->Subject = 'Hotel Room Request';
                $mail->Body    = $message; 
                $mail->AltBody = $alt_message;

                return $mail->send();
            }
    }

// Just make an error reporting function to return errors
function error_report($val = false)
    {
        $array["first-name"]    =   "First name is required";
        $array["last-name"]     =   "Last name is required";
        $array["email"]         =   "Email is required";
        $array["message"]       =   "A message is required";

        return (isset($array[$val]))? $array[$val] :false;
    }
// Sanitize. I add false so no error is thrown if not set
function sanitize_vals($data = false)
    {
        if(empty($data))
            return false;

        $data = trim($data);
        $data = stripslashes($data);
        $data = htmlspecialchars($data);
        return $data;
    }


// If a value is posted (any will do from your form) process the rest of the $_POST
if(isset($_POST["first-name"])) {
        // Just loop through the $_POST instead of doing all the manual if/else...
        foreach($_POST as $key => $value) {
                // This specifically processes your email address
                if(($key == 'email')) {
                        // If not valid email, send to errors
                        if(!filter_var($value,FILTER_VALIDATE_EMAIL))
                            $errors[$key]   =   error_report('email');
                        else
                            $payload[$key]  =   $value;
                    }
                // This processes the rest
                else {
                        $value  =   sanitize_vals($value);  
                        // Checks for empty
                        if(empty($value))
                            $errors[$key]       =   error_report($key);
                        else
                            $payload[$key]  =   $value;
                    }
            }
        // If all is good and no errors set, send the email
        if(!isset($errors)) {
                // SEND MAIL HERE.
                $page   =   (EmailEngine::Send($payload))? "Result" : "Error";
                header("Location: url/contact{$page}.html");
                exit;
            }
    }
?>

<form class="ui form"  method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
    <div class="field">
        <label>First Name</label>
        <input name="first-name" id="first-name" placeholder="First Name" type="text" value="<?php if(!empty($_POST['first-name'])) echo htmlspecialchars($_POST['first-name'],ENT_QUOTES);?>" />
        <span class="error">* <?php if(!empty($errors['first-name'])) echo $errors['first-name'];?></span> </div>
    <div class="field">
        <label>Last Name</label>
        <input name="last-name" id="last-name" placeholder="Last Name" type="text" value="<?php if(!empty($_POST['last-name'])) echo htmlspecialchars($_POST['last-name'],ENT_QUOTES);?>" />
        <span class="error">* <?php if(!empty($errors['last-name'])) echo $errors['last-name'];?></span> </div>
    <div class="field">
        <label>Email</label>
        <input name="email" id="email" placeholder="Email" type="email" value="<?php if(!empty($_POST['email'])) echo preg_replace('/[^0-9a-zA-Z\@\.\_\-]/',"",$_POST['email']);?>" />
        <span class="error">* <?php if(!empty($errors['email'])) echo $errors['email'];?></span> </div>
    <div class="field">
        <label>Message</label>
        <textarea rows="2" placeholder="Please type in your message" name="message" id="message"><?php if(!empty($_POST['message'])) echo htmlspecialchars($_POST['message'],ENT_QUOTES);?></textarea>
        <span class="error">* <?php if(!empty($errors['message'])) echo $errors['message'];?></span> </div>
    <button class="ui button" type="submit">Submit</button>
</form>

答案 1 :(得分：1)

<?php
session_start(); //allows use of session variables

if ($_SERVER["REQUEST_METHOD"] == "POST") {
   if (!isset($_POST["first-name"])) {
     $firstNameErr = "First name is required";
   } else {
     $first_name = test_input($_POST["first-name"]);
   }

    if (!isset($_POST["last-name"])) {
     $lastNameErr = "Last name is required";
   } else {
     $last_name = test_input($_POST["last-name"]);
   }

   if (!isset($_POST["email"])) {
     $emailErr = "Email is required";
   } else {
     $email = test_input($_POST["email"]);
   }

   if (!isset($_POST["message"])) {
     $messageErr = "Message is required";
   } else {
     $message = test_input($_POST["message"]);
   }

   if(isset($first_name) && isset($last_name) && isset($email) && isset($message))
   {
     $_SESSION['first_name'] = $first_name;
     $_SESSION['last_name'] = $last_name;
     $_SESSION['email'] = $email;
     $_SESSION['message'] = $message;

     header("Location: php_mailer_form.php");
   }
}

function test_input($data) {
   $data = trim($data);
   $data = stripslashes($data);
   $data = htmlspecialchars($data);
   return $data;
}
?>



<form class="ui form"  method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
  <div class="field">
    <label>First Name</label>
    <input name="first-name" id="first-name" placeholder="First Name" type="text">
     <?php if(isset($firstNameErr)) print ('<span class="error">* ' . $firstNameErr . '</span>'); ?>
  </div>
  <div class="field">
    <label>Last Name</label>
    <input name="last-name" id="last-name" placeholder="Last Name" type="text">
     <?php if(isset($lastNameErr)) print ('<span class="error">* ' . $lastNameErr . '</span>'); ?>
  </div>
    <div class="field">
    <label>Email</label>
    <input name="email" id="email" placeholder="Email" type="email">
     <?php if(isset($emailErr)) print ('<span class="error">* ' . $emailErr . '</span>'); ?>
  </div>
  <div class="field">
    <label>Message</label>
    <textarea rows="2" placeholder="Please type in your message" name="message" id="message"></textarea>
     <?php if(isset($messageErr)) print ('<span class="error">* ' . $messageErr . '</span>'); ?>
  </div>

  <button class="ui button" type="submit">Submit</button>
</form>

现在在您的其他页面中，要访问变量，只需调用“session_start（）;”在我们这里做的页面顶部，然后使用调用“$ _SESSION ['message']”来获取消息的值。这回答了你的问题了吗？另请注意，我编辑了html，以便只有在设置了错误变量时才会打印错误消息div。

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