<?php
include '../lib/rules/RuleInterface.php';
include '../lib/rules/BaseRule.php';
include '../lib/rules/CssHiddenFieldRule.php';
include '../lib/NoCaptchaAntiSpam.php';
use daxslab\nocaptcha\NoCaptchaAntiSpam;
use daxslab\nocaptcha\rules\BaseRule;
use daxslab\nocaptcha\rules\CssHiddenFieldRule;
session_start();
$title = "Random field name";
// Declare no captcha anti spam object with CSS based hidden field check
$noCaptchaAntiSpam = NoCaptchaAntiSpam::create([
'rules' => [
CssHiddenFieldRule::create([
// form input field name
'random_name' => BaseRule::RANDOM_MD5,
])
],
]);
?>
<?php
include_once('common/header.php');
?>
<div class="row">
<div class="col-md-12">
<h1><?= $title ?></h1>
<p>
Random field names can be applied for an extra security layer. Random field names are stored in session and
spam bots will find different field names on each visit.
</p>
<h2>Allowed <code>random_name</code> values</h2>
<ul>
<li><code>RANDOM_MD5</code>: Will generate a random MD5 hash as field name</li>
<li><code>RANDOM_SHA1</code>: Will generate a random SHA1 hash as field name</li>
<li><code>RANDOM_SHA256</code>: Will generate a random SHA256 hash as field name</li>
<li><code>RANDOM_UNIQID</code>: Will generate a random field name from <code>uniqid()</code></li>
<li>An integer value: Will generate a random field name with the integer length</li>
<li>A list: Will generate a field named from a randomly selected list element</li>
</ul>
<h2>Example:</h2>
<!-- show an alert message if it's a bot submit -->
<?php if ($_POST): ?>
<?php if ($noCaptchaAntiSpam->checkSubmit()): ?>
<div class="alert alert-success" role="alert">
Form submitted correctly
</div>
<?php else: ?>
<div class="alert alert-danger" role="alert">
Bot detected
</div>
<?php endif; ?>
<?php endif; ?>
<form id="contactForm" method="post">
<div class="form-group">
<label for="contactName">Name</label>
<input class="form-control" name="contact_name" id="contactName" placeholder="Enter name">
</div>
<div class="form-group">
<label for="contactEmail1">Email address</label>
<input type="email" name="contact_body" class="form-control" id="contactEmail1" placeholder="Enter email">
</div>
<div class="form-group">
<label for="contactBody">Body</label>
<textarea name="contact_email" class="form-control" id="contactBody" placeholder="Write to us"></textarea>
</div>
<button type="submit" name="submit_button" class="btn btn-primary">Submit</button>
<!-- Include rules form elements -->
<?= $noCaptchaAntiSpam->renderRules() ?>
</form>
<br>
<h2>PHP example code:</h2>
<?php
$code = <<< EOT
<?php
use daxslab\\nocaptcha\\NoCaptchaAntiSpam;
use daxslab\\nocaptcha\\rules\\CssHiddenFieldRule;
session_start();
\$noCaptchaAntiSpam = NoCaptchaAntiSpam::create([
'rules' => [
CssHiddenFieldRule::create([
// form input field name
'random_name' => BaseRule::RANDOM_MD5,
])
],
]);
?>
<!-- show an alert message if is a bot submit -->
<?php if (\$_POST): ?>
<?php if (\$noCaptchaAntiSpam->checkSubmit()): ?>
<div class="alert alert-success" role="alert">
Form submitted correctly
</div>
<?php else: ?>
<div class="alert alert-danger" role="alert">
Bot detected
</div>
<?php endif; ?>
<?php endif; ?>
<form id="contactForm" method="post">
<div class="form-group">
<label for="contactName">Name</label>
<input class="form-control" name="contact_name" id="contactName" placeholder="Enter name">
</div>
<div class="form-group">
<label for="contactEmail1">Email address</label>
<input type="email" name="contact_body" class="form-control" id="contactEmail1" placeholder="Enter email">
</div>
<div class="form-group">
<label for="contactBody">Body</label>
<textarea name="contact_email" class="form-control" id="contactBody" placeholder="Write to us"></textarea>
</div>
<button type="submit" name="submit_button" class="btn btn-primary">Submit</button>
<!-- Include rules form elements -->
<?= \$noCaptchaAntiSpam->renderRules() ?>
</form>
EOT;
?>
<pre>
<code class="HTML">
<?= htmlspecialchars($code) ?>
</code>
</pre>
</div>
</div>
<?php
include_once('common/footer.php');
?>
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