<?php

use Zend\Captcha\Figlet;
use Zend\Debug\Debug;

$captcha = new Figlet(['wordLen' => 3]);

// generates captcha token and stores it in Session
$captcha->generate();
$captchaStr = $captcha->getFiglet()
    ->render($captcha->getWord());

echo '<pre>' . $captchaStr . '</pre>';

// two possible user inputs.
// id = generated session id
// input = user input
$wrongInput = [
    'id' => 1,
    'input' => 'asdf',
];
$rightInput = [
    'id' => $captcha->getId(),
    'input' => $captcha->getWord(),
];

// validate user input
Debug::dump($captcha->isValid($wrongInput));
Debug::dump($captcha->isValid($rightInput));

  _  __     ___      _  _   
 | |/ //   / _ \\   | \| || 
 | ' //   | / \ ||  |  ' || 
 | . \\   | \_/ ||  | .  || 
 |_|\_\\   \___//   |_|\_|| 
 `-` --`   `---`    `-` -`  
                            

bool(false)

bool(true)

• Merging 2 Configurations in ZF2
• Using multiple filters with priority in ZF2
• locating files in a directory for classes only with ZF2

PHP 7.2, Zend 3.0, Symfony 4.0, Laravel 5.6, PHPUnit 6.5, Doctrine 2.8