Easy to use php verification code class

12 Jul 2016

In php, GD library is used for verification code, and phpgd library is used for verification code. Use GD library to do verification code in php, phpgd library verification code php require_once 'string.func.php';//Use GD library to do verification code/** *Add verification text* @param int $type * @param int $length */function

27 Jun 2023

Human-machine verification code is a commonly used form of verification code, which can effectively prevent malicious robot attacks and malicious registration. As a server-side language, PHP is very suitable for implementing human-machine verification code functions. In this article, we will introduce how to implement human-machine verification code using PHP. Generate verification code image First, we need to generate verification code image. This process can be achieved by using the GD library. The GD library is an open source image processing library that can be used to generate and manipulate various types of images. In PHP, you can install the GD extension

25 Jul 2016

php verification code class php verification code

08 Jun 2018

This article mainly introduces how to use the PHP verification code class. Interested friends can refer to it. I hope it will be helpful to everyone.

12 Jul 2016

Verification code class, php verification code class. Verification code class, php verification code class. Familiar with related image processing functions, simple verification code class 1 // code class 2 class ValidateCode { 3 private $charset = 'abcdefghkmnprstuvwxyzABCDEFGHKMNP

04 Jun 2018

This article shares with you the method and all the codes for using PHP's GD library to implement the verification code function. Friends in need can refer to it.