enable captcha

As my PHP website has more and more visits to blog development and more comments, Wordpress has more and more visits to blog development and comments as Wordpress does not have the filtering function, wordpress spam comments are getting more and

1, installation We install the Captcha expansion pack via Composer: Composer require Mews/captcha Note: Using this expansion pack in Windows also requires the installation of the GD2 extension (php.ini to cancel Php_gd2.dll in the previous

PHP development framework YiiFramework tutorial (20) UI component Captcha example Captcha (a Completely Automated Turing test that distinguishes Computers from Humans-Completely automation Public Turing test to tell Computers and Humans Apart,

Topics Many automatedProgramThe form is automatically submitted, causing a large amount of junk data on the Internet. To prevent this situation, we have implemented a graphic Verification Code (CAPTCHA:Completely automated public Turing test to

In PHP to generate verification code picture is quite simple, because in PHP provides us with the graphics Gd.dll Library, to enable the GD graphics library we just put PHP-GD in front of the php.ini; Method One The code is as follows

Recently encountered a problem, is that the verification code on someone else's computer can be displayed, but my own computer up can't. Reason for a long time, haha, finally found! Now let's share:Program:$w = 80; Set picture width and height$h = 26

Problem:Fatal error:call to undefined function think\imagettftext () in/var/www/webreg/thinkphp/library/think/ Verify.class.php on line 143See Phpinfo () and learned that GD does not have freetype supportSolve:First install freestyle,php-gd Ensure

Recently encountered a problem, is that the verification code on someone else's computer can be displayed, but my own computer up can't. Reason for a long time, haha, finally found! Now let's share:Program: $w = 80; Set picture width and height$h = 2

1 /// 2 ///returns the picture in the specified WebBrowserthe contents of the diagram in3 /// 4 /// WebBrowser Controls5 /// img Element6 /// img Object7 PrivateImage getwebimage (WebBrowser webctl,

This article mainly introduces the operations related to cookie and session functions in PHP Yii Framework. For more information, see Sessions Similar to requests and responses, you can access sessions by default by using the Session application