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12306 Verification Code Support Chinese alphanumeric, custom font PHP CAPTCHA code

Copy CodeThe code is as follows: /** Captcha Class base on PHP GD Lib* @author Design* @version 1.0* @demo* Include (' captchaclass.php ');* $captchaDemo =new Captcha ();* $captchaDemo->createimage ();*/Class captcha{@ Define CAPTCHA Picture

Support Chinese alphanumeric, custom font PHP captcha Program _php Tutorial

Verification code is often used for landing pages, message pages, registration page, the principle of verification code is very simple: the use of GD library to create a picture, of course, the image must add the necessary interference code, and

Application of CAPTCHA mechanism based on Zend _php tutorial

How do I generate a captcha picture? Using the PHP gd? Ok,right. In fact, Zend's CAPTCHA module has been packaged well. This article explains how to use the Zend Captcha module. Environment installationFirst Zend The captcha need to install GD. See

Application of CAPTCHA mechanism based on Zend _php example

How do I generate a captcha picture? Using PHP's GD? Ok,right. In fact, Zend's CAPTCHA module has been encapsulated. This article is about how to use the Zend Captcha module. Environment installationFirst Zend Captcha need to install GD. Check to

Java-captcha Implementation Verification Code (II)

CAPTCHA implement verification code to verify the user login, to prevent the password from being violently cracked.The following is run in the SPRINGMVC framework.imported jar Packages:Kaptcha-2.3.2.jar: http://download.csdn.net/detail/u013147600/905

Example of the CI framework verification code CAPTCHA auxiliary function usage, cicaptcha_PHP tutorial

Example of the CI framework verification code CAPTCHA auxiliary function usage, cicaptcha. Examples of CI framework verification code CAPTCHA auxiliary function usage. This document describes the use of the CI framework verification code CAPTCHA

Pure Code Series: Python Implementation captcha picture (PIL Library Classic usage, crawler 12306 ideas)

In today's web pages, image verification codes are one of the most common ways to prevent bots from submitting forms. Here is not detailed introduction, I believe we have met.Now give the code to implement the CAPTCHA image using Python's PiL

Self-encapsulated ———— Captcha Tool class ————

The following is my own encapsulation of the Verification Code tool class, in peacetime projects will be more often used in the tool class, the current package of this tool class simple version, if the need for a partner can be used, of course, I

Example of CI framework Verification Code CAPTCHA auxiliary function usage

This article mainly introduces the use of CAPTCHA auxiliary function in the CI framework verification code, and describes in detail how to implement the verification code based on CAPTCHA auxiliary function in the form of an instance. For more

Laravel5.2 using CAPTCHA to generate a verification code for login

This article mainly describes the Laravel5.2 use CAPTCHA Generate verification code (session pit), the need for friends can refer to the next Recently a friend asked me to help out. Laravel's verification code landing, so a little study of a bit.

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