How to use image captcha

Copy font file to the font dir and create the images/tmp directory first and/or adjust to your needs:

'form_captcha_options' => array( 'class' => 'image', 'options' => array( 'font' => __DIR__.'/../../public/fonts/Vera.ttf', 'imgDir' => __DIR__.'/../../public/images/tmp', 'imgUrl'=>'/images/tmp/', 'wordLen' => 5, 'fontsize'=>26, 'height'=>60, 'width'=>200, 'dotNoiseLevel' => 50, 'lineNoiseLevel' => 6, 'Messages' => array('badCaptcha' => 'Wrong Antispam-Code'), 'expiration' => 300, 'timeout' => 300, ), ),