<?php use Gregwar\Captcha\PhraseBuilder; use Gregwar\Captcha\CaptchaBuilder; $builder = new CaptchaBuilder(null, new PhraseBuilder(4, "2345678abcdefhkmnrstuxz")); $builder->build(); $_SESSION['phrase'] = $builder->getPhrase(); header('Content-Type: image/jpeg'); $builder->build()->output(); ?>