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<html>
<head>
<script src='https://www.google.com/recaptcha/api.js?render=6Le7-FkUAAAAADDSsTVBvpoUB5MkesNKgPVemFf-UD'></script>
</head>
<body>
<script>
grecaptcha.ready(function() {
grecaptcha.execute('6Le7-FkUAAAAADDSsTVBvpoUB5MkesNKgPVemFf-UD',{
action: 'action_name'
});
});
</script>
<form action="verify.php" method="post">
<input type="text" name="name" placeholder="Your name" required>
<input type="email" name="email" placeholder="Your email address" required>
<textarea name="message" placeholder="Type your message here...." required></textarea>
<input type="submit" name="submit" value="SUBMIT">
</form>
</body>
</html>
Verify.php
<?php
if(isset($_POST['g-recaptcha-response']) && !empty($_POST['g-recaptcha-response'])) {
//your site secret key
$secret = '6Le7-FkUAAAAAAJq065QqoXNvqJrtmlezcmvFMxHD';
//get verify response data
$verifyResponse = file_get_contents('https://www.google.com/recaptcha/api/siteverify?secret='.$secret.'&response='.$_POST['g-recaptcha-response']);
$responseData = json_decode($verifyResponse);
if($responseData->success):
print_r("Working Fine"); exit;
else:
print_r("No valid Key"); exit;
endif;
} else {
print_r("Not Working Captcha"); exit;
}
?>
<html>
<head>
<script src='https://www.google.com/recaptcha/api.js?render=6Le7-FkUAAAAADDSsTVBvpoUB5MkesNKgPVemFf-UD'></script>
</head>
<body>
<script>
// when form is submit
$('form').submit(function() {
// we stoped it
event.preventDefault();
// needs for recaptacha ready
grecaptcha.ready(function() {
// do request for recaptcha token
// response is promise with passed token
grecaptcha.execute('6Le7-FkUAAAAADDSsTVBvpoUB5MkesNKgPVemFf-UD',{action: 'create_comment'}).then(function(token) {
// add token to form
$('form').prepend('<input type="hidden" name="token" value="' + token + '">');
$('form').prepend('<input type="hidden" name="action" value="create_comment">');
// submit form now
$('form').unbind('submit').submit();
});;
});
});
</script>
<form action="verify.php" method="post">
<input type="text" name="name" placeholder="Your name" required >
<input type="email" name="email" placeholder="Your email address" required>
<textarea name="message" placeholder="Type your message here...." required></textarea>
<input type="submit" name="submit" value="SUBMIT">
</form>
</body>
</html>
PHP
$token = $_POST['token']; $secret = 'ur secret'; $action = $_POST['action']; // now you need do a POST requst to google recaptcha server // url: https://www.google.com/recaptcha/api/siteverify // with data secret:$secret and response:$token (ask google how do a post request from php for details) // anweser from server (response from google recaptcha server) will be json object with field "success" (true/false) and "action" for comparison (==) and score (number from 0.0 - 1.0) 0.5 > is a bot and 0.5 < is a human... detailed here https://developers.google.com/recaptcha/docs/v3#api-response
你可以为每个请求指定动作名称(create_post,update_post,create_comment ……)
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