PHP Math Captcha Example

a simple logic captcha, such as a math (arithmetic) captcha

Math captcha Sample

a simple logic captcha, such as a math (arithmetic) captcha (Add, subtract , multiply??) is enough to defeat most bots, so below is a simple code example of how a simple text based math captcha can solve the issue..

Solve the Captcha Below

Solve math problem: three * three =

© abrandao.com 2022