【发布时间】：2016-10-09 15:53:44
【问题描述】：
您好，我正在尝试将 Google Recaptcha 安装到我的联系表单中。 Recaptcha 显示正常，但目前即使 Captcha 未尝试，表单也会提交。
我已经发布了下面的代码，希望有任何帮助:)
<?php
/* =====================================================
* change this to the email you want the form to send to
* ===================================================== */
$email_to = ";
$email_subject = "Contact Form submitted";
if(isset($_POST['email']))
{
function return_error($error)
{
echo $error;
die();
}
// check for empty required fields
if (!isset($_POST['name']) ||
!isset($_POST['email']) ||
!isset($_POST['message'])
)
{
return_error('Please fill in all required fields.');
}
// form field values
$name = $_POST['name']; // required
$email = $_POST['email']; // required
$contact_number = $_POST['contact_number']; // not required
$message = $_POST['message']; // required
$enquiry = $_POST['enquiry'];
// form validation
$error_message = "";
// name
$name_exp = "/^[a-z0-9 .\-]+$/i";
if (!preg_match($name_exp,$name))
{
$this_error = 'Please enter a valid name.';
$error_message .= ($error_message == "") ? $this_error : "<br/>".$this_error;
}
$email_exp = '/^[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$/';
if (!preg_match($email_exp,$email))
{
$this_error = 'Please enter a valid email address.';
$error_message .= ($error_message == "") ? $this_error : "<br/>".$this_error;
}
// if there are validation errors
if(strlen($error_message) > 0)
{
return_error($error_message);
}
// prepare email 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);
}
$email_message .= "Enquiry Type: ".clean_string($enquiry)."\n";
$email_message .= "Name: ".clean_string($name)."\n";
$email_message .= "Email: ".clean_string($email)."\n";
$email_message .= "Contact number: ".clean_string($contact_number)."\n";
$email_message .= "Message: ".clean_string($message)."\n";
// create email headers
$headers = 'From: '.$email."\r\n".
'Reply-To: '.$email."\r\n" .
'X-Mailer: PHP/' . phpversion();
//var_dump($email_to); var_dump($email_subject); var_dump($email_message); var_dump($headers);
if (mail($email_to, $email_subject, $email_message, $headers))
{
echo 'Form submitted successfully.';
}
else
{
echo 'An error occured. Please try again later.';
die();
}
}
else
{
echo 'Please fill in all required fields.';
die();
}
?>
<?php
if(isset($_POST['g-recaptcha-response']) && !empty($_POST['g-recaptcha-response'])){
$privatekey = "";
//get verified response data
$param = "https://www.google.com/recaptcha/api/siteverify?secret=".$privatekey."&response=".$_POST['g-recaptcha-response'];
$verifyResponse = file_get_contents($param);
$responseData = json_decode($verifyResponse);
if($responseData->success){
// success
echo "success";
}else{
// failure
echo "failure";
}
}else{
// user didn't enter reCAPTCHA
echo "The reCAPTCHA wasn't entered correctly. Go back and try it again.";
}
?>
【问题讨论】：
-
这个帖子会给你一个良好的开端，http://stackoverflow.com/a/35250609/5517143
-
谢谢，我已经用那里的代码更新了我的文件。它显示正常，但即使没有尝试验证码，表单仍然可以正常提交。
-
是的，那是因为它正在进行服务器端验证。请edit您的问题并分享您的代码。
-
我在下面给出了答案。希望这能解决您的问题。