How Do I Add a Custom Captcha in WordPress?

Adding a custom captcha in WordPress is easy. First, you’ll need to create a new file in your theme’s functions.php file. Within this file, you’ll need to include the captcha plugin and specify the CAPTCHA image you want to use.

Then, you’ll need to create a new function within this file to handle the captcha. Finally, you’ll need to add the function to your theme’s header. Here’s a complete example:.

/** * Add a custom captcha */ add_action(‘wp_head’, ‘captcha_add’); function captcha_add() { // include the captcha plugin $this->plugin_directory = plugin_get_directory_path(__FILE__); if (file_exists( $this->plugin_directory . ‘/captcha.

php’)) { // get the image to use for the captcha $captcha_image = get_template_directory_uri(__FILE__) .jpg'; // create a new Captcha object $captcha = new captcha_plugin(); // set the CAPTCHA details $captcha->set_captcha_image($captcha_image); // add the captcha object to the WP_CAPTCHA object $wp_captcha->add_captcha($captcha); } } /** * Handle the captcha submission */ function captcha_submission() { // get the form data $form = $this->get_form(); // extract the input for the captcha $captcha_input = $form->get_input_field(‘captcha_input’); // check if the captcha was entered correctly if ( !empty($captcha_input) && is_numeric($captcha_input)) { // process the submission $response = $this->captcha_process( $captcha_input ); // output the response on the form print_r($response); } }.

To use this function in your theme, you’ll need to add the following line to your theme’s header.php file:

Finally, you’ll need to add the function to your theme’s functions.php file:

get_form(); // extract the input for the captcha $captcha_input = $form->get_input_field(‘captcha_input’); // check if the captcha was entered correctly if ( !empty($captcha_input) && is_numeric($captcha_input)) { // process the submission $response = $this->captcha_process( $captcha_input ); // output the response on the form print_r($response); } } ?>

That’s it! You’re now ready to use your custom captcha in your WordPress site.