Markup Google reCAPTCHA

9 posts in this topic


Google reCAPTCHA for ProcessWire.

This module simply adds reCAPTCHA to your form.



How To Install

  1. Download the zip file at Github or clone directly the repo into your site/modules
  2. If you dowloaded the zip file, extract it in your sites/modules directory
  3. Goto the modules admin page, click on refresh and install it.

Official install/uninstall doc:



You must create an API key prior to use this module. Goto to create your own. Next, add the API keys information to the module's settings.




  1. Call the module : $captcha = $modules->get("MarkupGoogleRecaptcha");
  2. Call $captcha->getScript(); somewhere to get the javascript used by reCAPTCHA
  3. Render reCAPTCHA in a standard HTML <form></form> by calling $captcha->render() or Render reCAPTCHA in an InputfieldForm by passing as argument your form to the render function: $captcha->render($form)
  4. Call verifyResponse() to get the result. It return TRUE if the challenge was successfull.



  • Using ProcessWire's form API :
$out = '';

$captcha = $modules->get("MarkupGoogleRecaptcha");
// if submitted, check response
if ($captcha->verifyResponse() === true)
    $out .= "Hi " . $input->post["name"].", thanks for submitting the form!";
    $form = $modules->get("InputfieldForm");
    $form->action = $page->url;
    $form->method = "post";
    $form->attr("id+name", "form");

    $field = $this->modules->get('InputfieldText');
    $field->name = "name";
    $field->placeholder = "name";

    // CAPTCHA - our form as argument, the function will add an InputfieldMarkup to our form

    // add a submit button
    $submit = $this->modules->get("InputfieldSubmit");
    $submit->name = "submit";
    $submit->value = 'Submit';

    $out .= $form->render();

    // include javascript 
    $out .= $captcha->getScript();

echo $out;


  • Example using plain HTML Form :
$captcha = $modules->get("MarkupGoogleRecaptcha");
// if submitted check response
if ($captcha->verifyResponse() === true) {
	$out .= "Hi " . $input->post["name"] . ", thanks for submitting the form!";
} else {
	$out .= "<form method='post' action='{$page->url}'>\n"
         . "\t<input type='text' name='name'>\n"
         . $captcha->render() // render reCaptcha
         . "\t<input type='submit'>\n"
         . "</form>\n";

	$out .= $captcha->getScript();

echo $out;


Edited by flydev
Code examples
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@flydev Thanks for the contribution! Sooner or later everyone needs a good (re)CAPTCHA.

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I'm trying out this module on my site but for $captcha->verifyResponse() I am getting 1 not true?

I am workong on localhost which I have added to the domaine list with google so maybe thats the problem?



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okay put it live and now getting

Parse error: syntax error, unexpected '[' in /var/www/vhosts/ on line 6

Parse Error: syntax error, unexpected '[' (line 6 of /var/www/vhosts/

This error message was shown because: site is in debug mode. ($config->debug = true; => /site/config.php). Error has been logged.

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Looks like you're running PHP 5.3 on the live system. You could fix this error by replacing the short array notation [...] used throughout the module with its verbose notation as array(...), but you should really think of switching to a more current PHP release.

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I have a pull-request for this module, pull-request adding multi language support to reCAPTCHA and multiple usage on one page. You can see usage on screenshot.

For set reCAPTCHA language, (reCAPTCHA Language Codes) :

<?php if(modules()->isInstalled('MarkupGoogleRecaptcha')) { echo modules()->MarkupGoogleRecaptcha->render($lang = "en"); }; ?>

For multiple reCAPTCHA usage, after all form render, call multiple usage script :

<?php if(modules()->isInstalled('MarkupGoogleRecaptcha')) { echo modules()->MarkupGoogleRecaptcha->getScriptMulti(); }; ?>


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Good day!

Thank you @flydev for the very useful module and @ukyo for making it possible to have multiple instances of reCAPCHA on the same page.

I am having just that: two forms on the same page both with reCAPCHA via the module. Both work using jQuery ajax. After an unsuccessful call I get response with error messages. Right here I need to reset reCAPCHA like described here in the JavaScript API section. But as I have two instances of reCAPCHA on the page I need to explicitly specify the opt_widget_id option. Is there a way to I get it with the module?

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You have an option, don't call getScriptMulti(); function.

<?php if(modules()->isInstalled('MarkupGoogleRecaptcha')) { echo modules()->MarkupGoogleRecaptcha->getScriptMulti(); }; ?>

Write your own javascript by referencing getScriptMulti(); function.

    public function getScriptMulti() {
        $return = "<script type=\"text/javascript\">
                    var onloadReCaptchaCallback = function(){
                        jQuery('.g-recaptcha').each(function() {
                            var _this = jQuery(this);
                            var recaptchaID ='id'),
                                hl ='hl'),
                                sitekey ='sitekey'),
                                theme ='theme'),
                                type ='type'),
                                size ='size'),
                                index ='index');
                            if(recaptchaID !== undefined) {
                                var recaptchaWidget = grecaptcha.render(recaptchaID, {
                                    'hl' : hl,
                                    'sitekey' : sitekey,
                                    'theme' : theme,
                                    'type' : type,
                                    'size' : size,
                                    'index' : index
                                // grecaptcha.reset(recaptchaWidget);
        $return .= "<script src='".self::SITE_RECAPTCHA_API_URL."?onload=onloadReCaptchaCallback&render=explicit' async defer></script>";

        return $return;


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