Course Introduction:In php, GD library is used for verification code, and phpgd library is used for verification code. Use GD library to do verification code in php, phpgd library verification code php require_once 'string.func.php';//Use GD library to do verification code/** *Add verification text* @param int $type * @param int $length */function
2016-07-12 comment 0 974
Course Introduction:I encountered a common but difficult problem when developing a user registration and logging into a system: how to effectively prevent robots from automatically registering and logging in. I tried multiple verification methods, but it didn't work well until I discovered this powerful PHP verification code library of lsmverify/lsmverify. By using Composer to install and configure this library, I successfully implemented efficient verification code function in the project, greatly improving the security of the system.
2025-04-18 comment 0 288
Course Introduction:Simple verification code generation, simple verification code generation. Simple verification code generation, simple verification code generation for($i= 0;$i 5;$i ){ $rand .= dechex( rand( 1, 15)); // Random number hexadecimal 1-F generation 5} $im = imagecreatetruecolor (100, 30)
2016-07-12 comment 0 1005
Course Introduction:Zend Framework generates verification codes and implements verification code verification functions (with demo source code download), zenddemo. Zend Framework generates verification codes and implements verification code verification functions (with demo source code download), zenddemo This article describes how Zend Framework generates verification codes and implements verification code verification functions.
2016-07-12 comment 0 1134
Course Introduction:Simple and secure PHP verification code with calling method, PHP verification code with calling method. Simple and secure PHP verification code with calling method, PHP verification code with call. 1. Verification code example 2. PHP verification code class, secoder.class.php php /** * Security verification code * * Secure verification
2016-07-12 comment 0 984
Course Advanced 20356
Course Introduction:PHP practical tutorial, learn how to make verification codes and verifications with numbers and letters, and understand all aspects of the difficulties and processes.
Course Advanced 9935
Course Introduction:"PHP Development Verification Code Tutorial" will introduce how to use PHP code to create a simple verification code
Course Advanced 19627
Course Introduction:PHP practical tutorial, learn how to make verification codes and verifications with numbers and letters, and understand all aspects of the difficulties and processes.
Course Elementary 13744
Course Introduction:Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.
Course Elementary 82260
Course Introduction:"CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).
thinkphp5 verification code cannot be displayed
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Verification code generated using think-captcha in thinkphp5 is not displayed
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thinkphp3.2 verification code automatic verification
How to use automatic verification of the verification code of thinkphp3.2? ? I can't write like this
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What does the verification code need to do?
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