PHP high security verification code generation class

13 Jul 2016

Personally written PHP verification code generation class sharing, PHP verification code generation sharing. Sharing the PHP verification code generation class written by myself, sharing the PHP verification code generation class. This verification code class can be used directly, or you can refer to it! The class member codestr is the generated verification code string

13 Jul 2016

PHP high security verification code generation program. This generation program needs to call some font libraries. You can call some fonts that come with your system. Of course, you can also put the fonts in a directory yourself like dedecms, so that they can be displayed on the server.

29 Jul 2016

Custom Hero Survival 1.87: Custom Hero Survival 1.87 PHP highly customizable security verification code code: Copy the code as follows: <?php public function captcha(){ $font_dir = $_SERVER ["DOCUMENT_ROOT"] . "your_ttf_file.ttf "; // Font library $img_w = ​​58; // Set image width $img_h = 20; // Set image height $font_size = 11; // Font size $angle_l = -10;

13 Aug 2023

ThinkPHP6 verification code generation and verification: protecting application security. With the development of the Internet, various types of malicious attacks are emerging in endlessly. In order to protect the security of applications, verification codes have become a common security measure. This article will introduce how to generate and verify verification codes in the ThinkPHP6 framework, and explain it through code examples. 1. Generate verification code In ThinkPHP6, generating verification code can be achieved by using the extension package topthink/think-captcha. head

12 Jul 2016

PHP verification code generation code, PHP verification code generation. PHP verification code generation code, PHP verification code generation Verification code is usually used to ensure that our website registration or login is not injected, but for more security we usually generate some hybrid verification

13 Jul 2016

PHP verification code generation program code. This article will introduce you to the program that uses session storage and gd library to generate verification codes. At the same time, some interference elements will be added, so that you can simply prevent machine registration. Let me give you