简体繁体 English

验证码，流量非常高

[英]captcha that works with very high traffic

原文 2011-06-17 21:59:47 8 2 php/ captcha

My website is on php and I want to integrate a good captcha in my website. 我的网站位于php上，我想在我的网站中集成一个很好的验证码。

The traffic of the website is very high so most of the free available captcha either have issues on my server or they just fail and annoy my users. 该网站的流量非常高，因此大多数免费的可用验证码要么在我的服务器上出现问题，要么就失败了，并惹恼了我的用户。

Please let me know a good captcha software written in php which can handle very huge amount of traffic. 请让我知道一个很好的用php编写的验证码软件，它可以处理非常大的流量。

2 个解决方案

I'd recommend ReCaptcha . 我建议ReCaptcha 。 It's a very widely used external captcha service. 这是一种非常广泛使用的外部验证码服务。

Free 自由

Strong security 强大的安全性

Accessible to blind users 盲人用户可以使用

30+ million served daily 每天提供30+百万次

Hosted by Google (you don't host the images nor script that generates them) 由Google托管（您不托管图像或生成图像的脚本）

Helps digitization of text 帮助文本数字化

If you want to avoid image-based CAPTCHA systems, you can always use math questions: 如果要避免使用基于图像的CAPTCHA系统，则可以始终使用数学问题：

What is the sum of three and five? 三和五的总和是多少？
Two multiplied by six is what? 二乘六是什么？
etc etc. 等等等

Keep a table of questions/responses and validate their response with the correct one. 保留一张问题/答案表，并用正确的答案验证其答案。 Works well, and fast. 效果很好，而且速度很快。