A very original ASCII Captcha.
/* Create an instance of the alphabet to use. */
$alphabet = new FedericoBiccheddu\AsciiCaptcha\Alphabet\DefaultAlphabet;
/* Init the main Captcha class */
$captcha = new FedericoBiccheddu\AsciiCaptcha\Captcha($alphabet);
/* Generate a random string */
$captcha->generateString();
/*
* Display your ASCII generated code.
* By default, toHtml() use self-close break. You can
* set the first parameter "false" to use <br>
*/
echo $captcha->toHtml();Example result for string "06YF2":
***** ******* ** ** ******** *******
** ** ** ** ** ** ** ** **
** **** ** **** ** **
** *** ** ******** ** ****** *******
**** ** ** ** ** ** **
** ** ** ** ** ** **
***** ******* ** ** *********