why captcha is important

in the process of Web development , Verification code is often used to prevent the robot from constantly submitting data and causing the website to be paralyzed . Yii provides a verification code plug- in, that is , Captcha. The first step:using in

I want to sum up the verification code (the verification code used for open source. Of course, you can also implement it on your own, but you can use it for mature open-source projects.) After reading several open-source projects, we found that

Yii2 detailed steps to add verification code-White Wolf stack author: White Wolf Source: Yellow. I thought the yii2 framework verification code was comprehensive. I tried Baidu and google. most of the tutorials were not completely scattered. I

Author: White Wolf Source: Http://www.manks.top/article/yii2_captcha This article copyright belongs to the author, welcome reprint, but without the author consent must retain this paragraph statement, and in the article page obvious location gives

Detailed steps for adding a verification code to Yii2 and detailed steps for yii2 verification code. Yii2 added the verification code step details, yii2 verification code details originally thought that yii2 framework verification code this is very

Originally thought Yii2 frame Verification code This piece is very comprehensive, try Baidu Google a bit, most of the tutorials write fragmented, thinking of their own write a full step of the verification Code tutorial. We assume that the

Detailed steps for adding a verification code to Yii2 and detailed steps for yii2 Verification Code I thought the yii2 framework verification code was comprehensive. I tried Baidu and google. Most of the tutorials were not completely scattered. I

Why do I need to enable two-step verification for an Apple ID? Why should I use two-step verification for my Apple ID?Apple ID is the key for you to perform many Apple-related tasks. Please note that only you can access your account details, update

The captcha below cannot be displayed in the PHP verification code pattern. 500 error is returned when the php file is running. & nbsp; the verification code pattern is not displayed. Note this sentence "$ _ SESSION ['pass _ phrase '] & nbsp; = &

Python implements the 12306 ticket snatching and automatic email sending reminder payment function, python12306 # In front of this article, I have already developed this program. However, the code of the entire program will not be posted because of