insert captcha

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

Functions of the GD library 1,imagecreatetruecolor-----Create a true-color image Imagecreatetruecolor (int x_size,int y_size)//x is wide, y represents high 2,imagecolorallocate Assigning color (palette) to an image Imagecolorallocate (Resource Image,

When logging on to many websites, they no longer use simple English and digital verification codes. In order to prevent attacks by disgusting registration and group-sending software, they are now using Chinese verification codes.Today, we will share

Preface Hello everyone I am: The stone is not easy, today I brought the PHP base Class Library prototype version of the teaching article, so my work line has been divided into three categories, namely: JavaScript front-end Framework (package library)

"PHP Basic Class Library" Prototype prototype teaching articles! Preface Hello everyone I am: The stone is not easy, today I brought the PHP base Class Library prototype version of the teaching article, so my work line has been divided into three

1. Introduction Sometimes we need to use verification code in the form submission to prevent flooding, bots and other malicious operations, about the verification code has a lot of open source Library to use, the current most used is the Google

How to integrate GooglereCAPTCHA verification code in Laravel5 forms 1. Introduction Sometimes we need to use verification codes when submitting forms to prevent malicious operations such as irrigation and robots. There are many open-source

Example of implementing asynchronous non-blocking access to the database using Python Tornado framework, pythontornado Tornado is an http non-blocking server. We will use the tornado framework, mongodb database, and motor (asynchronous driver of

The authentication Code (CAPTCHA) is the abbreviation for "completely automated public Turing test to tell Computers and humans Apart" (fully automatic distinguishing between computer and human Turing tests), It is a public automatic program that

Got a simple verification code at the beginning of only a verification code of the input box and the verification code picture submitted can be printed after you enter the verification code is correct or wrong later I added a text box added a few