google captcha example

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

Zend-based Captcha mechanism. How do I generate a verification code image? Use php GD? OK, right. In fact, the Zend Captcha module has been encapsulated. This article describes how to use the Zend Captcha module. How does one generate a verification

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

This article introduces the application of Zend-based Captcha mechanism. For more information about how to generate a verification code image, see? Use php GD? OK, right. In fact, the Zend Captcha module has been encapsulated. This article describes

How do I generate a verification code image? Use php GD? OK, right. In fact, the Zend Captcha module has been encapsulated. This article describes how to use the Zend Captcha module. Environment InstallationFirst, GD must be installed for Zend

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

Example of the CI framework Verification Code CAPTCHA auxiliary function usage, cicaptcha This article describes how to use the CAPTCHA helper function of the CI framework verification code and shares it with you for your reference. The details are

Google has previously launched a more secure way to log in to Google accounts because of the frequent malicious attacks on Google's Gmail accounts and even the attacks on senior U.S. government officials, which are now open to global users.

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

Because Google's Gmail accounts are often malicious attacks, so the author suggested that all users with Gmail to open two-step verification, so that security can be guaranteed, two-step verification of the proposed use of the smartphone installed