PHP code example of vulcanphp / captcha

1. Go to this page and download the library: Download vulcanphp/captcha library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

vulcanphp / captcha example snippets




use VulcanPhp\Captcha;

t Form
echo Captcha::render('contact');

// Validate Captcha for contact form
if(Captcha::validate('contact')){
    // passed captcha validation
}else{
    // failed captcha validation
}





use VulcanPhp\Captcha;

anumeric
echo Captcha::render(
    'contact',
    Captcha::TYPE_ALPHANUMERIC,
    Captcha::DIFFICULTY_HARD, // list of all difficulties:
        // Captcha::DIFFICULTY_EASY (Only Small Letters)
        // Captcha::DIFFICULTY_MEDIUM (Small Letters + Numbers)
        // Captcha::DIFFICULTY_HARD (Capital Letters + Small Letters + Numbers)
);

// Render a Captcha Using Mathematical Calculations
echo Captcha::render('contact', Captcha::TYPE_MATHEMATICAL);

// Validate Captcha for contact form
if(Captcha::validate('contact', Captcha::TYPE_MATHEMATICAL)){
    // passed captcha validation
}else{
    // failed captcha validation
}

...