Question

我已经通过了大量的形式，似乎无法找到答案。我已经用我的PHP表单开启和关闭了几天这个问题。希望在这里找到帮助。形式是完美的。所有字段在提交时都正常工作，但似乎总是在一天到两天之后发送的第二个表单是空白的。如果有任何建议，为什么会发生这种情况，那将会很有帮助。

<?php


$name = $_POST['name'];
$email = $_POST['email'];
$subject = $_POST['subject'];
$comments = $_POST['comments'];

// recipient address
$to = "grandforkssuites@gmail.com";

// subject of email
$re = "Contact Us Form Delivery";

// message creation
$contact = "Name:".$name."\nEmail:".$email."\nSubject:".$subject."\r\n";

$txt = "Comments:".$comments."\r\n";


$fmsg = $contact."\r\n".$txt;

$msg = wordwrap($fmsg, 70);

// send email
mail($to,$re,$msg);

?>

  <form action="contact1.php" method=post name="form" id="form">
  <div class="col_w280 float_l">
  <p><em>
 <label for="author">Name:</label> <input type="text" id="name" name="name"                class="required input_field" />
 <div class="cleaner_h10"></div>

   <label for="email">Email:</label> <input type="text" id="email" name="email"  class="validate-email required input_field" />
   <div class="cleaner_h10"></div>
   <label for="email">Phone:</label> <input type="text" id="phone" name="phone"   class="required input_field" />
   <div class="cleaner_h10"></div>

   <label for="subject">Subject:</label> <input type="text" name="subject" id="subject" class="input_field" />
   <div class="cleaner_h10"></div>

                          </div>                        
   <div class="col_w280 float_r">

   <label for="text">Comments:</label> <textarea id="comments" name="comments" rows="0"  cols="0" class="required input_field"></textarea>
   <div class="cleaner_h10"></div></em></p>
   <input name=submit type=submit id="submit"  onClick="MM_validateForm('name','','R','email','','RisEmail');return  document.MM_returnValue" value="Send">              

                    </div></form>

Answer 1

向PHP添加验证，否则即使没有通过POST发送任何值，只需访问该页面即可发送空白电子邮件。很可能搜索引擎或此类机器人只是爬行。

请检查其POST

<?php 
if($_SERVER['REQUEST_METHOD']==='POST'){
//put code here
}
?>

并检查您的值是否设置为min-max length ect

<?php 

...
...
...

//Comments
if(empty($_POST['comments'])){
    //comments empty, do or set something
}else if(strlen($_POST['comments']) < 5){
    //not long enough, do or set something
}else if(strlen($_POST['comments']) > 50){
    //too large, do or set something
}
?>

最重要的是检查电子邮件确实是一封电子邮件..

<?php 
if(filter_var($_POST['email'], FILTER_VALIDATE_EMAIL)){
 //is an email
}else{
 //not an email
}
?>

此外，您还想添加一个基本验证码，否则您每天可以享受1000次营销/垃圾邮件。

祝你好运，实施它。

php联系表单有时发送空白电子邮件

1 个答案: