Shulou(Shulou.com)06/03 Report--

This article mainly introduces "how to write php CAPTCHA function". In daily operation, I believe many people have doubts about how to write php CAPTCHA function. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubt of "how to write php CAPTCHA function". Next, please follow the editor to study!

The details are as follows

Code snippet 1: simple php CAPTCHA function

Code snippet 2: php CAPTCHA function

Function _ code ($_ code_length = 4, $_ width = 75, $_ height = 25) {for

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.