PHP verification code class that supports Chinese alphanumeric and custom fonts

29Jul2016

12306 verification code: The 12306 verification code supports Chinese alphanumeric and custom fonts. PHP verification code code: Copy the code as follows: createImage(); */ class

15Jul2017

This article introduces in detail the PHP verification code class based on the GD library (supports Chinese and English fonts, backgrounds, interference points and lines, distortion...), which has certain reference value. Let's take a look at it together.

12Jul2016

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

14Jul2023

Tips for generating random verification code images using PHP and GD libraries. Random verification code images are a common security verification mechanism in website development. It requires users to enter the correct verification code to continue the operation. In this article, we will introduce techniques on how to generate random verification code images using PHP and the GD library. The GD library is an open source library for processing images, which provides PHP with rich image processing functions. By using the GD library, we can easily generate various verification code images. First, we need to create a PHP file named

25Jul2016

Example of php verification code (GD library generates verification code)

13Jul2016

Implement verification code without GD library. How to implement verification code without GD library?php (as the current mainstream development language) //+-------------------------- ----------------------- //| * File validate_image.php (as the current