提交后用成功消息替换HTML表单，表单使用单独的php文件发送邮件
[英]Replacing HTML form with success message after submit, form sends mail using separate php file
问题描述
I have an html contact form which is built into index.html, and then I have a mail.php file that sends a mail and also uses some Javascript. 
我有一个内置到index.html的html联系表单，然后我有一个mail.php文件，它发送邮件并使用一些Javascript。 When I fill in form and submit, I have coded it to send the mail and then it pops up with a success message box and then redirects back to index.html. 当我填写表单并提交时，我将其编码为发送邮件，然后弹出一个成功消息框，然后重定向回index.html。
What I would like is for the form to be replaced with the success message, to avoid a page refresh and also to avoid the popup message box. 我想要的是将表单替换为成功消息，以避免页面刷新并避免弹出消息框。
form from index.html: 来自index.html的表单：
<form action="mail.php" method="POST">
<div class="row uniform">
<div class="6u 12u$(xsmall)">
<input type="text" name="name" id="name" value="" placeholder="Name" />
</div>
<div class="6u$ 12u$(xsmall)">
<input type="email" name="email" id="email" value="" placeholder="Email" />
</div>
<div class="12u$">
<!--<div class="select-wrapper">
</div>-->
</div>
<div class="12u$">
<textarea name="message" id="message" placeholder="Enter your message" rows="6"></textarea>
</div>
<center><div class="g-recaptcha" data-sitekey=""></div></center>
<div class="12u$">
<ul class="actions">
<li><input type="submit" value="Send Message" class="special" /></li>
<li><input type="reset" value="Reset" /></li>
</ul>
</div>
</div>
</form>
php file, email address and recaptcha token removed for obvious reasons: 删除php文件，电子邮件地址和recaptcha令牌的原因显而易见：
<?php $name = $_POST['name'];
$email = $_POST['email'];
$message = $_POST['message'];
$formcontent = "From: $name \n email: $email \n Message: $message";
$recipient = 'email address here';
$subject = 'Message from Website';
$mailheader = "From: $email \r\n";
$captcha;
{
if(isset($_POST['g-recaptcha-response']))
{
$captcha=$_POST['g-recaptcha-response'];
}
if(!$captcha)
{
echo '<script language="javascript">';
echo 'alert("Please check the Captcha")';
echo '</script>';
exit;
}
$response=file_get_contents("https://www.google.com/recaptcha/api/siteverify?secret=&response=".$captcha."&remoteip=".$_SERVER['REMOTE_ADDR']);
if($response.success==false)
{
echo '<h2>Please do not try and spam here.</h2>';
}else
{
mail($recipient, $subject, $formcontent, $mailheader) or die("Error!");
echo '<script language="javascript">';
echo 'alert("Your Message successfully sent, we will get back to you ASAP.");';
echo 'window.location.href="index.html";';
echo '</script>';
}
} ?>
This is a topic that I have actually looked at: 这是我实际看过的主题：
3 个解决方案
解决方案1
3 已采纳 2015-10-13 08:14:22
Best way to do all your stuff is to use ajax. 做所有事情的最好方法是使用ajax。 Include jquery in your html. 在你的html中包含jquery。
Put your form inside a wrapper div 将表单放在包装器div中
<div class="something">
<!-- your form here -->
</div>
Submit your form through ajax, instead of using basic form submission 通过ajax提交表单，而不是使用基本表单提交
//"idform" is the id of the form
$("#idForm").submit(function() {
var url = "path/to/your/script.php"; // the script where you handle the form input.
$.ajax({
type: "POST",
url: url,
// serialize your form's elements.
data: $("#idForm").serialize(),
success: function(data)
{
// "something" is the class of your form wrapper
$('.something').html(data);
}
});
// avoid to execute the actual submit of the form.
return false;
});
And last thing you need to change is in your php code 最后你需要改变的是你的PHP代码
keep only one echo for success 只保留一个成功的回声
echo "Your Message successfully sent, we will get back to you ASAP.";
解决方案2
1 2015-10-13 08:10:38
You can accomplish this using jQuery and Ajax form submit. 您可以使用jQuery和Ajax表单提交来完成此操作。
First, include jquery in your head element 首先，在头元素中包含jquery
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
</head>
Next, give your form an id 接下来，给你的表单一个id
<form id='mail_form' action="mail.php" method="POST">
Add a span somewhere with the id='error' 使用id ='error'在某处添加span
<span id='error' style='color:red; font-weight:bold;'></span>
Adjust the mail.php to the following: 将mail.php调整为以下内容：
<?php
$success = true;
$errors = array();
$name = $_POST['name'];
$email = $_POST['email'];
$message = $_POST['message'];
$formcontent = "From: $name \n email: $email \n Message: $message";
$recipient = 'email address here';
$subject = 'Message from Website';
$mailheader = "From: $email \r\n";
$captcha = false;
if(isset($_POST['g-recaptcha-response']))
{
$captcha=$_POST['g-recaptcha-response'];
}
if(!$captcha)
{
$success = false;
array_push($errors, "Please check the captcha");
}
$response=file_get_contents("https://www.google.com/recaptcha/api/siteverify?secret=&response=".$captcha."&remoteip=".$_SERVER['REMOTE_ADDR']);
if($response.success==false)
{
$success = false;
array_push($errors, "Please do not try and spam here.");
}
if ($success)
{
mail($recipient, $subject, $formcontent, $mailheader) or die("Error!");
}
$output_array = array("success" => $success, "errors" => $errors);
echo json_encode($output_array);
?>
Then, at the bottom of your page add 然后，在页面底部添加
<script>
$('#mail_form').on('submit', function(){
var dataIn = $(this).serialize(); //serialize turns the form data into a string that can be passed to mail.php. Try doing alert(dataIn); to see what it holds.
$.post( "./mail.php", dataIn )
.done(function( dataOut )
{
//dataOut holds the response from mail.php. The response would be any html mail.php outputs. I typically echo out json encoded arrays as responses that you can parse here in the jQuery.
var myArray = JSON.parse(dataOut );
if (myArray['success'] == true) //Check if it was successfull.
{
$("#mail_form").html("Congrats! We just e-mailed you!");
}
else //there were errors
{
$('#error').html(""); //Clear error span
$.each(myArray['errors'], function(i){
$('#error').append(myArray['errors'][i] + "<br>");
}
});
return false; //Make sure you do this or it will submit the form and redirect
});
</script>
解决方案3
1 2015-10-13 08:28:51
First of all you should use AJAX call to submit the form. 首先，您应该使用AJAX调用来提交表单。 If you insist on using pure JS the script would look like this (written in 5 seconds - probably needs some adjusting): 如果你坚持使用纯JS，脚本看起来像这样（写在5秒钟 - 可能需要一些调整）：
<script>
document.forms['yourForm'].onsubmit = function(form) { // you have to add 'name' attribute to the form and replace 'yourForm' with it
var data = ... //here you have to get all the values from form elements and store them in data object. to make less changes to the script use the elements' names as object names
if (window.XMLHttpRequest)
{
var xhReq = new XMLHttpRequest();
}
else
{
var xhReq = new ActiveXObject("Microsoft.XMLHTTP");
}
var method= 'POST')
var async = false; //you can actually set true here, it doesn't matter much in this case
var url = 'mail.php';
xhReq.open(method, url, async);
xhReq.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
xhReq.setRequestHeader("X-Requested-With", "XMLHttpRequest");
xhReq.send(data);
document.getElementById("form's parent's ID goes here").innerHTML = "new content"
return false;
}
</script>
Than you have to remove all echos from php file as it wouldn't be shown anyway. 你必须从php文件中删除所有回声，因为它无论如何都不会显示。 You can also add some more sophistication to this script eg check if the mail function worked correctly (by returning something in php file and checking the AJAX response in JS) or to catch the captcha errors. 您还可以为此脚本添加更复杂的内容，例如检查邮件功能是否正常工作（通过返回php文件中的内容并检查JS中的AJAX响应）或捕获验证码错误。 It would also be extremely easier to achieve in jQuery if you're willing to go down that road. 如果你愿意走这条路，那么在jQuery中实现起来也会非常容易。
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