My 5th book "50 Tips on JavaScript" is on sale. Go get it from https://50tips.dev.
Illustrated guide to 50 of the most interesting JavaScript topics.

expression

PHP: simple captcha script

In my company, we have a lot of WordPress sites. Some of them require contact form with captcha field. The short way for solving such task is to use a plugin. However, as you may guess, the add-ons are available for everyone, which means that they could be easily explored and probably hacked. That's why I suggested a simple, custom script, which is developed by us.

...read more