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Course Introduction：How to generate image verification code in php. How to generate image verification codes in PHP. This article shares with you how to generate image verification codes in PHP for your reference. The specific content is as follows. First, randomly select a fixed number from the specified character set.

2016-07-12 comment 0  1091

Course Introduction：PHP generates verification codes, class sharing of thumbnails and watermarks, and verification code watermarks. Class sharing for php to generate verification codes, thumbnails and watermarks. Verification code watermark encapsulates a class that can generate verification codes, thumbnails and watermarks. Share it with everyone. phpclass image{ sessio

2016-07-12 comment 0  1146

Course Introduction：Image verification code file sharing written in PHP. Image verification code class file sharing written in PHP, suitable for customized verification code class! php /* * To change this license header, choose License Headers in Project Properties. * To change

2016-07-06 comment 0  1086

Course Introduction：Image verification code file sharing written in PHP. Image verification code class file sharing written in PHP, suitable for customized verification code class! php /* * To change this license header, choose License Headers in Project Properties. * To change

2016-07-12 comment 0  997

Course Introduction：Generate a simple verification code based on PHP, PHP generates a simple verification code. Generate a simple verification code based on PHP. PHP generates a simple verification code. Without further ado, I will post the code directly for you. The specific code is as follows: for($i=0;$i5;$i ){$rand .= dechex(rand(

2016-07-12 comment 0  1107

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).

Course Elementary  13130

Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.

Course Elementary  24578

Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.

Course Elementary  27436

Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.