Google's reCAPTCHA trait class - use with google/recaptcha package.

CaptchaTrait.php

<?php
/**
 * Reusable Captcha trait.
 *
 * to use this trait, simply include it inside your class via use statement.
 * Then you just need to call $this->captchaCheck();
 */
namespace App\Http\Traits;

use Illuminate\Support\Facades\Input;
use ReCaptcha\ReCaptcha;

/**
 * Trait CaptchaTrait
 */
trait CaptchaTrait {

    public function captchaCheck()
    {
        $response = Input::get('g-recaptcha-response');
        $remoteip = $_SERVER['REMOTE_ADDR'];
        $secret   = env('RECAPTCHA_SECRET_KEY');

        $recaptcha = new ReCaptcha($secret);
        $resp = $recaptcha->verify($response, $remoteip);
        if ($resp->isSuccess()) {
            return 1;
        } else {
            return 0;
        }
    }
}