


Implementation code of Yii2.0 framework to generate QR code function
通过composer安装:
1.下面的方法是通过composer加载
php composer.phar require "2amigos/yii2-qrcode-helper" "*"
或者添加
"2amigos/yii2-qrcode-helper" : "*"
到对应项目的composer.json文件中
通过归档文件安装:
不习惯用composer的用户可以点击此处本站下载二维码扩展。
然后解压,将文件名修改为yii2-qrcode-helper放入vendor/2amigos/目录下面
编辑/vendor/yiisoft/extensions.php,添加以下代码到数组中
'2amigos/yii2-qrcode-helper' => array ( 'name' => '2amigos/yii2-qrcode-helper', 'version' => '1.0.2.0', 'alias' => array ( '@dosamigos/qrcode' => $vendorDir . '/2amigos/yii2-qrcode-helper/src', ), ),
用法
在你的控制器中添加一下代码
use dosamigos\qrcode\QrCode; //引入类 \\ ... public function actionQrcode() { return QrCode::png('http://www.yii-china.com'); //调用二维码生成方法 } public function actionDemo() { return $this->render('index'); }
在你的页面中添加以下代码 (demo/index)
<img src="/static/imghwm/default1.png" data-src="<?= Url::to(['index/qrcode'])? alt="Implementation code of Yii2.0 framework to generate QR code function" >" class="lazy" />
访问demo这个方法,就能看到一张漂亮的二维码了
The above is the detailed content of Implementation code of Yii2.0 framework to generate QR code function. For more information, please follow other related articles on the PHP Chinese website!

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Atom editor mac version download
The most popular open source editor

SublimeText3 Linux new version
SublimeText3 Linux latest version

SublimeText3 Mac version
God-level code editing software (SublimeText3)

SublimeText3 English version
Recommended: Win version, supports code prompts!

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.