S2OJ/web/vendor/gregwar/captcha/demo/form.php
2022-03-14 13:49:48 +00:00

33 lines
999 B
PHP

<?php
require_once __DIR__.'/../vendor/autoload.php';
use Gregwar\Captcha\PhraseBuilder;
// We need the session to check the phrase after submitting
session_start();
?>
<html>
<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
// Checking that the posted phrase match the phrase stored in the session
if (isset($_SESSION['phrase']) && PhraseBuilder::comparePhrases($_SESSION['phrase'], $_POST['phrase'])) {
echo "<h1>Captcha is valid !</h1>";
} else {
echo "<h1>Captcha is not valid!</h1>";
}
// The phrase can't be used twice
unset($_SESSION['phrase']);
}
?>
<form method="post">
Copy the CAPTCHA:
<?php
// See session.php, where the captcha is actually rendered and the session phrase
// is set accordingly to the image displayed
?>
<img src="session.php" />
<input type="text" name="phrase" />
<input type="submit" />
</form>
</html>