验证表单并提交到同一页面

时间：2012-11-02 07:01:39

标签： php jquery validation form-submit

我试图让表单不提交给send_email.php，而是留在同一页面上。另外，我想在输入框下显示错误。 （如果我了解如何防止页面刷新，我想我可以做错误）

我一直在阅读堆栈溢出，我应该使用AJAX，但我不知道如何开始。

形式：

<form name="contactform" method="post" action="send_email.php">
<table>
<tr>
    <td><label for="name">Name:</label></td>
    <td><input type="text" name="name" /></td>
    </tr>
    <tr>
    <td><label for="email">Email:</label></td>
    <td><input type="text" name="email" /></td>
    </tr>
    <tr>
    <td><label for="phone">Phone:</label></td>
    <td><input type="text" name="phone" /></td>
    </tr>
    <tr>
    <td>&nbsp;</td>
    <td><input class="button" type="submit" value="Submit" /></td>
    </tr>
    </table>
    </form>

send_email.php：

<?php
if(isset($_POST['email'])) {

$email_to = "example@example.com";
$email_subject = "Form Subject";


function died($error) {
    echo $error."<br /><br />";
    die();
}

// validation expected data exists
if(!isset($_POST['name']) ||
    !isset($_POST['email']) ||
    !isset($_POST['phone']))
 {
    died('We are sorry, but there appears to be a problem with the form you submitted.');       
}

$first_name = $_POST['name']; // required
$email_from = $_POST['email']; // required
$telephone = $_POST['phone']; // required


$error_message = "";
$email_exp = '/^[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$/';
if(!preg_match($email_exp,$email_from)) {
$error_message .= 'Enter a valid email.<br />';
}
$string_exp = "/^[A-Za-z .'-]+$/";
if(!preg_match($string_exp,$first_name)) {
$error_message .= 'Enter a valid name.<br />';
}
if(strlen($telephone) != NULL || strlen($telephone) != "") {
$error_message .= 'Enter valid phone.<br />';
}
if(strlen($error_message) > 0) {
died($error_message);
}
$email_message = "Form details below.\n\n";

function clean_string($string) {
  $bad = array("content-type","bcc:","to:","cc:","href");
  return str_replace($bad,"",$string);
}

$email_message .= "Name: ".clean_string($first_name)."\n";
$email_message .= "Email: ".clean_string($email_from)."\n";



// create email headers
$headers = 'From: '.$email_from."\r\n".
'Reply-To: '.$email_from."\r\n" .
'X-Mailer: PHP/' . phpversion();
@mail($email_to, $email_subject, $email_message, $headers);  
?>


<b>Thank you!</b>. 

<?php
}
?>

3 个答案:

答案 0 :(得分：1)

<html>
<head>
<script src="http://code.jquery.com/jquery-1.8.2.min.js"></script>
<SCRIPT TYPE="text/javascript">

$(document).ready(function(){

$("form").submit(function() {

var name = $('input[name="name"]').val();
var email = $('input[name="email"]').val();
var phone = $('input[name="phone"]').val();


$.post("send_email.php", { "name": name,"email": email,"phone": phone},
 function(data){

alert( data.response + data.email);

 }, "json");
return false;
});
});
</SCRIPT>
</head>
<body>
<form name="contactform" method="post" action="">
<table>
<tr>
    <td><label for="name">Name:</label></td>
    <td><input type="text" name="name" /></td>
    </tr>
    <tr>
    <td><label for="email">Email:</label></td>
    <td><input type="text" name="email" /></td>
    </tr>
    <tr>
    <td><label for="phone">Phone:</label></td>
    <td><input type="text" name="phone" /></td>
    </tr>
    <tr>
    <td>&nbsp;</td>
    <td><input class="button" type="submit" value="Submit" /></td>
    </tr>
    </table>
    </form>
</body>
</html>

=============================================== ===========================

send_email.php将如下所示 

<?php

$email_to = $_POST['email'];
$email_subject = "Form Subject";


$first_name = $_POST['name']; // required
$email_from = "example@example.com"; // required
$telephone = $_POST['phone']; // required


$error_message = "";
$email_exp = '/^[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$/';
if(!preg_match($email_exp,$email_from)) {
$error_message .= 'Enter a valid email.<br />';
}
$string_exp = "/^[A-Za-z .'-]+$/";
if(!preg_match($string_exp,$first_name)) {
$error_message .= 'Enter a valid name.<br />';
}
if(strlen($telephone) != NULL || strlen($telephone) != "") {
$error_message .= 'Enter valid phone.<br />';
}

$email_message = "Form details below.\n\n";

function clean_string($string) {
  $bad = array("content-type","bcc:","to:","cc:","href");
  return str_replace($bad,"",$string);
}

$email_message = "Name:" . $_POST['name'] . " Mail:".$_POST['email'] ." Phone:". $_POST['phone'];




// create email headers
$headers = 'From: '.$email_from."\r\n".
'Reply-To: '.$email_from."\r\n" .
'X-Mailer: PHP/' . phpversion();
if(@mail($email_to, $email_subject, $email_message, $headers))
{
echo '{ "response": "SENT", "email": "'.$_POST['email'].'"}'; 
}else{
echo '{ "response": "ERROR", "email": "'.$_POST['email'].'"}'; 
}



?>

你可以使用jquery验证你的表单，我从你的php中删除了一些不必要的验证行，这样你可以在你确定你的代码工作时再次添加，并且mail_to地址没有指向表单邮件地址。

我检查了上面的代码并且它有效。祝好运。

注意：在我的服务器中if（@mail（$ email_to，$ email_subject，$ email_message，$ headers））总是返回true，即使我使用空白作为电子邮件地址

答案 1 :(得分：0)

$ .post（'send_email.php'，$（'＃theform'）。serialize（））  //表单是您要提交的表单的ID ..

您可以在以下链接中找到更多选项

http://api.jquery.com/jQuery.post/

答案 2 :(得分：0)

您可以尝试以下代码。这里我们没有使用ajax但是正在使用会话。

<强> form.php的 

<?php
session_start();
?>

<form name="contactform" method="post" action="send_email.php">
    <table>
<tr>
    <td><label for="name">Name:</label></td>
    <td><input type="text" name="name" /></td>
    </tr>    
    <tr>
    <td colspan="2"><?php echo $_SESSION[lmsg_name]; ?></td>
    </tr>

<tr>
<td><label for="email">Email:</label></td>
<td><input type="text" name="email" /></td>
</tr>
 <tr>
<td colspan="2"><?php echo $_SESSION[lmsg_email]; ?></td>
</tr>

<tr>
<td><label for="phone">Phone:</label></td>
<td><input type="text" name="phone" /></td>
</tr>
 <tr>
<td colspan="2"><?php echo $_SESSION[lmsg_phone]; ?></td>
</tr>

<tr>
<td>&nbsp;</td>
<td><input class="button" type="submit" value="Submit" /></td>
</tr>
</table>
    </form>
<?php
 $_SESSION[lmsg_name] ='';
 $_SESSION[lmsg_email] ='';
 $_SESSION[lmsg_phone] =''; 
?>

<强> send_email.php： 

<?php
session_start();

if(isset($_POST['email'])) {

$email_to = "example@example.com";
$email_subject = "Form Subject";


function died($error) {
    echo $error."<br /><br />";
    die();
}

// validation expected data exists
if(!isset($_POST['name']) ||
    !isset($_POST['email']) ||
    !isset($_POST['phone']))
 {
    died('We are sorry, but there appears to be a problem with the form you submitted.');       
}

$first_name = $_POST['name']; // required
$email_from = $_POST['email']; // required
$telephone = $_POST['phone']; // required



$error_message = "";
$email_exp = '/^[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$/';
if(!preg_match($email_exp,$email_from)) {
$error_message = 'Enter a valid email.<br />';
$_SESSION[lmsg_email] = $error_message;
header("Location:form.php");
}
$string_exp = "/^[A-Za-z .'-]+$/";
if(!preg_match($string_exp,$first_name)) {
$error_message = 'Enter a valid name.<br />';
$_SESSION[lmsg_name] = $error_message;
header("Location:form.php");
}
if(strlen($telephone) != NULL || strlen($telephone) == "") {
$error_message = 'Enter valid phone.<br />';
$_SESSION[lmsg_phone] = $error_message;
header("Location:form.php");
}
if(strlen($error_message) > 0) {
died($error_message);
}
$email_message = "Form details below.\n\n";

function clean_string($string) {
  $bad = array("content-type","bcc:","to:","cc:","href");
  return str_replace($bad,"",$string);
}

$email_message .= "Name: ".clean_string($first_name)."\n";
$email_message .= "Email: ".clean_string($email_from)."\n";



// create email headers
$headers = 'From: '.$email_from."\r\n".
'Reply-To: '.$email_from."\r\n" .
'X-Mailer: PHP/' . phpversion();
@mail($email_to, $email_subject, $email_message, $headers);  
?>


<b>Thank you!</b>. 

<?php
}
?>
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