/usr/share/doc/php-google-recaptcha/examples/

/usr/share/doc/php-google-recaptcha/examples

Name	Size	Mode	Actions
appengine-https.php	2071	0644	edit dl rm
config.php.dist	1848	0644	edit dl rm
examples.css	403	0644	edit dl rm
google0afd8760fd68f119.html	53	0644	edit dl rm
index.php	3802	0644	edit dl rm
recaptcha-content-security-policy.php	8564	0644	edit dl rm
recaptcha-v2-checkbox-explicit.php	7945	0644	edit dl rm
recaptcha-v2-checkbox.php	7508	0644	edit dl rm
recaptcha-v2-invisible.php	7257	0644	edit dl rm
recaptcha-v3-request-scores.php	6802	0644	edit dl rm
recaptcha-v3-verify.php	2871	0644	edit dl rm
robots.txt	24	0644	edit dl rm

Edit: /usr/share/doc/php-google-recaptcha/examples/recaptcha-v2-checkbox-explicit.php (7945B)

<?php
/**
 * BSD 3-Clause License
 * @copyright (c) 2019, Google Inc.
 * @link https://www.google.com/recaptcha
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

require __DIR__ . '/appengine-https.php';

// Initiate the autoloader. The file should be generated by Composer.
// You will provide your own autoloader or require the files directly if you did
// not install via Composer.
require_once 'ReCaptcha/autoload.php';

// Register API keys at https://www.google.com/recaptcha/admin
$siteKey = '';
$secret = '';

// Copy the config.php.dist file to config.php and update it with your keys to run the examples
if ($siteKey == '' && is_readable(__DIR__ . '/config.php')) {
    $config = include __DIR__ . '/config.php';
    $siteKey = $config['v2-standard']['site'];
    $secret = $config['v2-standard']['secret'];
}

// reCAPTCHA supports 40+ languages listed here: https://developers.google.com/recaptcha/docs/language
$lang = 'en';
?>
<!DOCTYPE html>
<html lang="en">
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,height=device-height,minimum-scale=1">
<link rel="shortcut icon" href="https://www.gstatic.com/recaptcha/admin/favicon.ico" type="image/x-icon"/>
<link rel="canonical" href="https://recaptcha-demo.appspot.com/recaptcha-v2-checkbox-explicit.php">
<script type="application/ld+json">{ "@context": "http://schema.org", "@type": "WebSite", "name": "reCAPTCHA demo - \"I'm not a robot\" checkbox - Explicit render", "url": "https://recaptcha-demo.appspot.com/recaptcha-v2-checkbox-explicit.php" }</script>
<meta name="description" content="reCAPTCHA demo - &quot;I'm not a robot&quot; checkbox - Explicit render" />
<meta property="og:url" content="https://recaptcha-demo.appspot.com/recaptcha-v2-checkbox-explicit.php" />
<meta property="og:type" content="website" />
<meta property="og:title" content="reCAPTCHA demo - &quot;I'm not a robot&quot; checkbox - Explicit render" />
<meta property="og:description" content="reCAPTCHA demo - &quot;I'm not a robot&quot; checkbox - Explicit render" />
<link rel="stylesheet" type="text/css" href="/examples.css">
<title>reCAPTCHA demo - "I'm not a robot" checkbox - Explicit render</title>

<header>
    <h1>reCAPTCHA demo</h1><h2>"I'm not a robot" checkbox - Explicit render</h2>
    <p><a href="/">↩️ Home</a></p>
</header>
<main>
<?php
if ($siteKey === '' || $secret === ''):
?>
    <h2>Add your keys</h2>
    <p>If you do not have keys already then visit <kbd> <a href = "https://www.google.com/recaptcha/admin">https://www.google.com/recaptcha/admin</a></kbd> to generate them. Edit this file and set the respective keys in the <kbd>config.php</kbd> file or directly to <kbd>$siteKey</kbd> and <kbd>$secret</kbd>. Reload the page after this.</p>
    <?php
elseif (isset($_POST['g-recaptcha-response'])):
    // The POST data here is unfiltered because this is an example.
    // In production, *always* sanitise and validate your input'
    ?>
        <h2><kbd>POST</kbd> data</h2>
        <kbd><pre><?php var_export($_POST);?></pre></kbd>
        <?php
    // If the form submission includes the "g-captcha-response" field
    // Create an instance of the service using your secret
    $recaptcha = new \ReCaptcha\ReCaptcha($secret);

// If file_get_contents() is locked down on your PHP installation to disallow
    // its use with URLs, then you can use the alternative request method instead.
    // This makes use of fsockopen() instead.
    //  $recaptcha = new \ReCaptcha\ReCaptcha($secret, new \ReCaptcha\RequestMethod\SocketPost());
    // Make the call to verify the response and also pass the user's IP address
    $resp = $recaptcha->setExpectedHostname($_SERVER['SERVER_NAME'])
                      ->verify($_POST['g-recaptcha-response'], $_SERVER['REMOTE_ADDR']);

if ($resp->isSuccess()):
        // If the response is a success, that's it!
        ?>
        <h2>Success!</h2>
        <kbd><pre><?php var_export($resp);?></pre></kbd>
        <p>That's it. Everything is working. Go integrate this into your real project.</p>
        <p><a href="/recaptcha-v2-checkbox-explicit.php">⤴️ Try again</a></p>
        <?php
    else:
        // If it's not successful, then one or more error codes will be returned.
        ?>
        <h2>Something went wrong</h2>
        <kbd><pre><?php var_export($resp);?></pre></kbd>
        <p>Check the error code reference at <kbd><a href="https://developers.google.com/recaptcha/docs/verify#error-code-reference">https://developers.google.com/recaptcha/docs/verify#error-code-reference</a></kbd>.
        <p><strong>Note:</strong> Error code <kbd>missing-input-response</kbd> may mean the user just didn't complete the reCAPTCHA.</p>
        <p><a href="/recaptcha-v2-checkbox-explicit.php">⤴️ Try again</a></p>
        <?php
    endif;
else:
    // Add the g-recaptcha tag to the form you want to include the reCAPTCHA element
    ?>
    <p>Complete the reCAPTCHA then submit the form.</p>
    <form action="/recaptcha-v2-checkbox-explicit.php" method="post">
        <fieldset>
            <legend>An example form</legend>
            <label class="form-field">Example input A: <input type="text" name="ex-a" value="foo"></label>
            <label class="form-field">Example input B: <input type="text" name="ex-b" value="bar"></label>
            
            <div class="g-recaptcha form-field"></div>
            
            <button class="form-field" type="submit" disabled>Submit ↦</button>
        </fieldset>
    </form>
    <script type="text/javascript">
    var onloadCallback = function() {
        var captchaContainer = document.querySelector('.g-recaptcha');
        grecaptcha.render(captchaContainer, {
          'sitekey' : '<?php echo $siteKey; ?>'
        });
        document.querySelector('button[type="submit"]').disabled = false;
    };
    </script>
    <script type="text/javascript" src="https://www.google.com/recaptcha/api.js?hl=<?php echo $lang; ?>&onload=onloadCallback&render=explicit" async defer></script>
    <?php
endif;?>
</main>

<script async src="https://www.googletagmanager.com/gtag/js?id=UA-123057962-1"></script>
<script>window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'UA-123057962-1');</script>

reCAPTCHA demo - "I'm not a robot" checkbox - Explicit render

reCAPTCHA demo

"I'm not a robot" checkbox - Explicit render

↩️ Home

Add your keys

If you do not have keys already then visit https://www.google.com/recaptcha/admin to generate them. Edit this file and set the respective keys in the config.php file or directly to $siteKey and $secret. Reload the page after this.

`POST` data

setExpectedHostname($_SERVER['SERVER_NAME']) ->verify($_POST['g-recaptcha-response'], $_SERVER['REMOTE_ADDR']); if ($resp->isSuccess()): // If the response is a success, that's it! ?>

Success!

That's it. Everything is working. Go integrate this into your real project.

⤴️ Try again

Something went wrong

Check the error code reference at https://developers.google.com/recaptcha/docs/verify#error-code-reference.

Note: Error code missing-input-response may mean the user just didn't complete the reCAPTCHA.

⤴️ Try again

Complete the reCAPTCHA then submit the form.