Google html 表单的 ReCAPTCHA php
Google ReCAPTCHA for html form with php
最近我的网站上的垃圾邮件情况已经失控，我决定我真的必须对此做点什么。 google reCAPTCHA 似乎是区分人与机器人的最佳方式。
我在PHP方面没有太多经验，这让我很难完成实施。
HTML 我表格的一侧：
<div class="col-lg-6 no-gap contact-form">
<header class="sec-heading">
<br>
<h2>Contact</h2>
<span class="subheading">SUBHEADING</span>
</header>
<form action="assets/contact-form/contact-form.php" method="POST" class="form-ajax wow fadeInUp" data-wow-duration="1s" data-wow-delay=".1s">
<!-- Name -->
<div class="form-group">
<input type="text" name="name" id="name-contact-1" class="form-control validate-locally" placeholder="Write your name">
<label for="name-contact-1">Name</label>
<span class="pull-right alert-error"></span>
</div>
<!-- Email -->
<div class="form-group">
<input type="email" name="email" id="email-contact-1" class="form-control validate-locally" placeholder="Your email">
<label for="email-contact-1">Email</label>
<span class="pull-right alert-error"></span>
</div>
<!-- Select -->
<div class="form-group">
<select class="form-control" id="select-form" name="select" id="select">
<option id="optiona">Option A</option>
<option id="optionb">Option B</option>
<option id="optionc">Option C</option>
<option id="optiond">Option D</option>
</select>
<label for="select-form">Your choice</label>
</div>
<!-- Select -->
<div class="form-group">
<select class="form-control" id="select-form" name="select1" id="select1">
<option value="" disabled selected>Choose.. </option>
<option id="option1">Option 1</option>
<option id="option2">Option 2</option>
<option id="option3">Option 3</option>
<option id="option4">Option 4</option>
</select>
<label for="select-form">Options</label>
</div>
<!-- Message -->
<div class="form-group">
<textarea class="form-control" name="message" id="message-contact-1" rows="5" placeholder="Your message"></textarea>
<label for="message-contact-1">Message</label>
</div>
<div class="form-group">
<div class="g-recaptcha" data-sitekey="---SECRET CODE FOR reCAPTCHA---"></div>
</div>
<br>
<input type="submit" name="submit" class="btn pull-right" value="Send message">
<!-- Ajax Message -->
<div class="ajax-message col-md-12 no-gap"></div>
</form>
PHP 我表格的一侧：
<?php
if(isset($_POST['email'])) {
$email_to = "my@email.com";
$email_subject = "Message recieved from form";
function died($error) {
echo '<div class="alert alert-danger alert-dismissible wow fadeInUp" role="alert">
<button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button>
<strong>Oops! Something seems to be incorrect. Please check for errors:</strong><br>';
echo $error."<br />";
echo '</div>';
die();
}
if(!isset($_POST['name']) ||
!isset($_POST['email']) ||
!isset($_POST['message'])) {
died('Oops! Something seems to be incorrect. Please check for errors. ');
}
$name = $_POST['name']; // required
$email_from = $_POST['email']; // required
$telephone = $_POST['phone']; // not required
$message = $_POST['message']; // required
$select = $_POST['select']; // required
$select1 = $_POST['select1']; // 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)) {
$error_message .= 'The email adress you entered is invalid<br />';
}
if(strlen($name) < 2) {
$error_message .= 'The name you have entered seems to be invalid<br />';
}
if(strlen($message) < 2) {
$error_message .= 'The message you entered seems to be invalid<br />';
}
if(strlen($error_message) > 0) {
died($error_message);
}
$email_message = "A message was recieved: <br>\n\n";
function clean_string($string) {
$bad = array("content-type","bcc:","to:","cc:","href");
return str_replace($bad,"",$string);
}
$email_message .= "<br><b>Name:</b> ".clean_string($name)."\n";
$email_message .= "<br><b>Email:</b> ".clean_string($email_from)."\n";
$email_message .= "<br><b>Options1:</b> ".clean_string($select)."\n";
$email_message .= "<br><b>Options2:</b> ".clean_string($select1)."\n";
$email_message .= "<br><b>Message:</b> ".clean_string($message)."\n";
$headers = 'From: '.$email_from."\r\n".
$headers = 'Content-type: text/html; charset=utf-8' . "\r\n";
'Reply-To: '.$email_from."\r\n" .
'X-Mailer: PHP/' . phpversion();
@mail($email_to, $email_subject, $email_message, $headers);
?>
<div class="alert alert-success alert-dismissible wow fadeInUp" role="alert">
<button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button>
Thank you! Your message has been sent!
</div>
<?php } ?>
像我这样的新手，我一直在尝试按照有关如何完成这项工作的教程进行操作，因此我尝试在 php 文件的顶部实现一个函数，它看起来像：
<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_URL => 'https://www.google.com/recaptcha/api/siteverify',
CURLOPT_POST => 1,
CURLOPT_POSTFIELDS => [
'secret' => 'SECRET CODE FROM GOOGLE',
'response' => $_POST['g-recaptcha-response'],
],
]);
$response = json_decode(curl_exec($curl));
if (!$response->success) {
但我似乎根本无法让它工作，而且我不知道如何计算应该生成错误消息的“}else{”部分。
有经验的人能帮帮我吗？
谢谢，
最肮脏的方法是用 che recaptcha-check 代码包装您的实际 email-sending 代码。首先，将 died() 函数移到 if {..} 语句之外。您可以将该函数重用为一个非常简单的错误处理程序。
<?php
//recaptcha test
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_URL => 'https://www.google.com/recaptcha/api/siteverify',
CURLOPT_POST => 1,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_FOLLOWLOCATION => 1,
CURLOPT_POSTFIELDS => [
'secret' => 'SECRET CODE FROM GOOGLE',
'response' => $_POST['g-recaptcha-response'],
],
]);
$response = json_decode(curl_exec($curl));
//UPDATE: if your check pass, go on
if ($response->success) {
//your actual code.
} else {
died("Recaptcha missing.");
}
?>
最近我的网站上的垃圾邮件情况已经失控，我决定我真的必须对此做点什么。 google reCAPTCHA 似乎是区分人与机器人的最佳方式。
我在PHP方面没有太多经验，这让我很难完成实施。
HTML 我表格的一侧：
<div class="col-lg-6 no-gap contact-form">
<header class="sec-heading">
<br>
<h2>Contact</h2>
<span class="subheading">SUBHEADING</span>
</header>
<form action="assets/contact-form/contact-form.php" method="POST" class="form-ajax wow fadeInUp" data-wow-duration="1s" data-wow-delay=".1s">
<!-- Name -->
<div class="form-group">
<input type="text" name="name" id="name-contact-1" class="form-control validate-locally" placeholder="Write your name">
<label for="name-contact-1">Name</label>
<span class="pull-right alert-error"></span>
</div>
<!-- Email -->
<div class="form-group">
<input type="email" name="email" id="email-contact-1" class="form-control validate-locally" placeholder="Your email">
<label for="email-contact-1">Email</label>
<span class="pull-right alert-error"></span>
</div>
<!-- Select -->
<div class="form-group">
<select class="form-control" id="select-form" name="select" id="select">
<option id="optiona">Option A</option>
<option id="optionb">Option B</option>
<option id="optionc">Option C</option>
<option id="optiond">Option D</option>
</select>
<label for="select-form">Your choice</label>
</div>
<!-- Select -->
<div class="form-group">
<select class="form-control" id="select-form" name="select1" id="select1">
<option value="" disabled selected>Choose.. </option>
<option id="option1">Option 1</option>
<option id="option2">Option 2</option>
<option id="option3">Option 3</option>
<option id="option4">Option 4</option>
</select>
<label for="select-form">Options</label>
</div>
<!-- Message -->
<div class="form-group">
<textarea class="form-control" name="message" id="message-contact-1" rows="5" placeholder="Your message"></textarea>
<label for="message-contact-1">Message</label>
</div>
<div class="form-group">
<div class="g-recaptcha" data-sitekey="---SECRET CODE FOR reCAPTCHA---"></div>
</div>
<br>
<input type="submit" name="submit" class="btn pull-right" value="Send message">
<!-- Ajax Message -->
<div class="ajax-message col-md-12 no-gap"></div>
</form>
PHP 我表格的一侧：
<?php
if(isset($_POST['email'])) {
$email_to = "my@email.com";
$email_subject = "Message recieved from form";
function died($error) {
echo '<div class="alert alert-danger alert-dismissible wow fadeInUp" role="alert">
<button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button>
<strong>Oops! Something seems to be incorrect. Please check for errors:</strong><br>';
echo $error."<br />";
echo '</div>';
die();
}
if(!isset($_POST['name']) ||
!isset($_POST['email']) ||
!isset($_POST['message'])) {
died('Oops! Something seems to be incorrect. Please check for errors. ');
}
$name = $_POST['name']; // required
$email_from = $_POST['email']; // required
$telephone = $_POST['phone']; // not required
$message = $_POST['message']; // required
$select = $_POST['select']; // required
$select1 = $_POST['select1']; // 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)) {
$error_message .= 'The email adress you entered is invalid<br />';
}
if(strlen($name) < 2) {
$error_message .= 'The name you have entered seems to be invalid<br />';
}
if(strlen($message) < 2) {
$error_message .= 'The message you entered seems to be invalid<br />';
}
if(strlen($error_message) > 0) {
died($error_message);
}
$email_message = "A message was recieved: <br>\n\n";
function clean_string($string) {
$bad = array("content-type","bcc:","to:","cc:","href");
return str_replace($bad,"",$string);
}
$email_message .= "<br><b>Name:</b> ".clean_string($name)."\n";
$email_message .= "<br><b>Email:</b> ".clean_string($email_from)."\n";
$email_message .= "<br><b>Options1:</b> ".clean_string($select)."\n";
$email_message .= "<br><b>Options2:</b> ".clean_string($select1)."\n";
$email_message .= "<br><b>Message:</b> ".clean_string($message)."\n";
$headers = 'From: '.$email_from."\r\n".
$headers = 'Content-type: text/html; charset=utf-8' . "\r\n";
'Reply-To: '.$email_from."\r\n" .
'X-Mailer: PHP/' . phpversion();
@mail($email_to, $email_subject, $email_message, $headers);
?>
<div class="alert alert-success alert-dismissible wow fadeInUp" role="alert">
<button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button>
Thank you! Your message has been sent!
</div>
<?php } ?>
像我这样的新手，我一直在尝试按照有关如何完成这项工作的教程进行操作，因此我尝试在 php 文件的顶部实现一个函数，它看起来像：
<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_URL => 'https://www.google.com/recaptcha/api/siteverify',
CURLOPT_POST => 1,
CURLOPT_POSTFIELDS => [
'secret' => 'SECRET CODE FROM GOOGLE',
'response' => $_POST['g-recaptcha-response'],
],
]);
$response = json_decode(curl_exec($curl));
if (!$response->success) {
但我似乎根本无法让它工作，而且我不知道如何计算应该生成错误消息的“}else{”部分。
有经验的人能帮帮我吗？
谢谢，
最肮脏的方法是用 che recaptcha-check 代码包装您的实际 email-sending 代码。首先，将 died() 函数移到 if {..} 语句之外。您可以将该函数重用为一个非常简单的错误处理程序。
<?php
//recaptcha test
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_URL => 'https://www.google.com/recaptcha/api/siteverify',
CURLOPT_POST => 1,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_FOLLOWLOCATION => 1,
CURLOPT_POSTFIELDS => [
'secret' => 'SECRET CODE FROM GOOGLE',
'response' => $_POST['g-recaptcha-response'],
],
]);
$response = json_decode(curl_exec($curl));
//UPDATE: if your check pass, go on
if ($response->success) {
//your actual code.
} else {
died("Recaptcha missing.");
}
?>