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Google reCaptcha php Class
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| const formSubmitRecapcha = function (site_key = "") { | |
| grecaptcha.ready(function () { | |
| grecaptcha.execute(site_key, { | |
| action: 'contact' | |
| }).then(function (token) { | |
| // Get #recaptchaResponse field and populate it's value | |
| var recaptchaResponse = document.getElementById('recaptchaResponse'); | |
| recaptchaResponse.value = token; | |
| // | |
| // Make the Ajax Call | |
| // | |
| }); | |
| }); |
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| <?php | |
| Use Kreativan\Recapcha; | |
| ?> | |
| <form action="./" method="POST" enctype='multipart/form-data'> | |
| <?php | |
| echo Recapcha::input(); | |
| ?> | |
| <button type="button" onclick="formSubmitRecapcha('<?= Recapcha::get_site_key() ?>')"> | |
| Submit | |
| </button> | |
| </form> |
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| <?php | |
| use Kreativan\Recapcha; | |
| /** | |
| * Check for reCapcha | |
| * if there is recaptcha_response in POST, validate it | |
| */ | |
| if (isset($_POST['recaptcha_response'])) { | |
| $recapcha = Recapcha::is_valid(); | |
| if (!$recapcha) { | |
| $response["status"] = "error"; | |
| $response["errors"][] = "Recapcha validation failed"; | |
| response($response); | |
| exit(); | |
| } | |
| } |
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| <?php | |
| /** | |
| * Recapcha Class | |
| * Handle recaptcha validation using $_POST['recaptcha_response'] request. | |
| * | |
| * You need to have "recaptcha_response" field in your form, | |
| * and populate it's value dynamically just before or during the form submit. | |
| * | |
| * Set site_key and secret_key | |
| * Recapcha::set_site_key('YOUR_CUSTOM_SITE_KEY'); | |
| * Recapcha::set_secret_key('YOUR_CUSTOM_SECRET_KEY'); | |
| * | |
| * Render script in <head> | |
| * @example echo Recapcha::script(); | |
| * | |
| * Render input field inside form | |
| * @example echo Recapcha::input(); | |
| * | |
| * Validate - will return bool true/false | |
| * @example $recapcha = Recapcha::is_valid(); | |
| */ | |
| namespace Kreativan; | |
| class Recapcha { | |
| private static $site_key = ''; | |
| private static $secret_key = ''; | |
| /** | |
| * GET | |
| */ | |
| public static function get_site_key() { | |
| return self::$site_key; | |
| } | |
| public static function get_secret_key() { | |
| return self::$secret_key; | |
| } | |
| /** | |
| * SET | |
| */ | |
| public static function set_site_key($value) { | |
| self::$site_key = $value; | |
| } | |
| public static function set_secret_key($value) { | |
| self::$secret_key = $value; | |
| } | |
| public static function input() { | |
| return '<input type="hidden" name="recaptcha_response" id="recaptchaResponse">'; | |
| } | |
| /** | |
| * Render google recaptcha script | |
| * | |
| * @example in <head> section of your website | |
| * echo Kreativan\Recapcha::script(); | |
| */ | |
| public static function script() { | |
| return '<script async src="https://www.google.com/recaptcha/api.js?render=' . self::get_site_key() . '"></script>'; | |
| } | |
| /** | |
| * Check if recaptcha is valid | |
| * @see @method self::validate() | |
| */ | |
| public static function is_valid() { | |
| $validation_response = self::validate(); | |
| return $validation_response['success']; | |
| } | |
| /** | |
| * Server side recapcha validation | |
| * Send POST req to the google end-point with 'recaptcha_response'. | |
| * End point will return json with 'success' key true/false | |
| */ | |
| public static function validate() { | |
| $recaptcha_url = 'https://www.google.com/recaptcha/api/siteverify'; | |
| $recaptcha_secret = self::secret_key(); | |
| $recaptcha_response = $_POST['recaptcha_response']; | |
| // Make the POST request | |
| $recaptcha = file_get_contents($recaptcha_url . '?secret=' . $recaptcha_secret . '&response=' . $recaptcha_response); | |
| return json_decode($recaptcha, true); | |
| } | |
| } |
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