php captcha generator

Verification code Generator is a simple, easy-to-use, functional Verification code generation tool, users can use the tool to easily generate verification code. Captcha Generator Feature Description: 1, Verification code length: the number of

This PHP generated CAPTCHA code principle generates a random number--Create picture--random number in the picture--Save in session, look at the process verification code picture generation notification browser will output PNG picture ready random

Excellent and useful collection of PHP tools views: 1141 Release Date: 2013/09/04 Category: Technology sharing PHP is one of the most widely used server-side open source scripting languages, many excellent open source programs are built on PHP, such

This generator needs to call some font libraries Oh, you can call some of your system's own fonts, of course, you can also like Dedecms to put the font into a directory, so it can be used on the server. The code is as follows Copy

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PHP generates a variety of common verification code and AJAX verification process, PHP Verification code AJAX Verification Verification codes are important in Web applications and are often used to prevent users from maliciously submitting forms,

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In web development in order to provide user experience we mostly use Ajax to do some things, let me introduce an AJAX implementation of the non-refreshed page verification code AJAX verification of the needs of friends can be consulted. Verification

This article mainly introduces PHP generate a variety of random verification code method, combined with specific examples of the form of PHP commonly used to generate verification code operation related skills, and with the demo source for the