captcha sites

Problem:Today, there is a strange problem, each page requested the Asp.net_sessionid of the cookie is not the same , resulting in a verification code validation error . That is, each request is a new session, we guarantee the verification code in

In 58 or market and other sites often see the mobile phone number is a picture format, or some site verification code. These are all dynamically generated, and today we'll look at how to use Python to generate images from text. In fact, today mainly

Deploy a Web Twitter client to Google App Engine OAuth provides a better way for consumers to access protected resources at the service provider's site. By using OAuth, user credentials will never be exposed to sites other than where the user data

Many of my friends are using Zen cart as the first choice for Foreign Trade website construction. as a supporter of zencart, I am very happy to hear from you. When using zencart as an e-commerce system for building Foreign Trade sites, we need to

A joke about verification code What is a verification code "Verification Code" (CAPTCHA) in fact, not everyone is always seen on different websites of the illegible letter combination pronoun, but "fully automatic distinction between computer and

In Web development and design, everything is not a good thing. We are often warned not to reinvent the wheel "child" (don't reinvent the wheel ), large-scale and comprehensive development is not only a huge burden, but also brings more security

This article mainly introduces the ThinkPHP3.2.3 verification code display, refresh, calibration, with a certain reference value, interested in small partners can refer to. ThinkPHP3.2.3 Verification code display, refresh, check, as follows: Show

Show Verification CodeFirst create a public controller under Home/controller Publiccontroller1 entry (); 20 }21 /* Verification Code Check */23 public function check_verify ($code, $id = ") { $verify = new \think\v Erify ();

Show Verification CodeFirst create a public controller under Home/controller Publiccontroller1 entry (); }21 /* Verification Code Check */23 public function check_verify ($code, $id = ") { $verify = new \think\verify ( );

9 php developers should know the PHP library 9 php developers should know the PHP library 9 Extremely Useful and Free PHP Libraries 1. ReCAPTCHA The reCAPTCHA database allows you to create an advanced CAPTCHA system for your website. this system is