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How to use Phalcon2 framework in php?

WBOYOriginal: 2023-06-01 09:04:351331browse

With the development of the Internet, the development of online applications, websites and systems has become increasingly mature. In order to improve development efficiency and code quality, the use of frameworks has become an indispensable part. Compared with other PHP frameworks, the Phalcon2 framework has a higher execution speed, takes up less resources, and has good flexibility and easy scalability. Therefore, when developing with PHP, it is highly recommended to choose the Phalcon2 framework.

This article will introduce how to use the Phalcon2 framework for PHP development. We will first understand the advantages and characteristics of the Phalcon2 framework, and then explain the installation and use of the Phalcon2 framework based on the actual situation, and demonstrate a simple example.

1. Advantages and features of the Phalcon2 framework

The execution speed of the Phalcon2 framework is very fast

Phalcon2 uses C language It is written and compiled into an extension file, so it runs very fast in the PHP environment.

Occupies less memory by default

Phalcon2's memory usage is very low, and the server does not need to occupy too many memory resources, thereby reducing the burden on the server.

Flexible and easy to expand

The component structure of the Phalcon2 framework is very simple and easy to understand. The overall design of the framework reflects good flexibility and scalability. Phalcon2 supports many third-party class libraries and can work well with other class libraries.

2. Installation of the Phalcon2 framework

The following will demonstrate the procedure for installing the Phalcon2 framework under CentOS.

Update Linux system software package

sudo yum update

Install EPEL source

sudo yum install epel-release

Install REMI source

sudo rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-7.rpm

Install PHP7 and its extensions

sudo yum install php70 php70-php php70-php-opcache php70-php-devel php70-php-mbstring php70-php-mysqlnd php70-php-pgsql php70-php-soap php70-php-phalcon2

Enable the Phalcon2 extension in PHP

sudo echo "extension=phalcon.so" >> /etc/php.d/40-phalcon.ini

Restart the Apache service

sudo service httpd restart

3. Use of Phalcon2 framework

Create Phalcon2 framework project

sudo phalcon create-project app_name

In app/ Configure database connection information in the config directory

return new PhalconConfig([
    'database' => [
        'adapter'     => 'Mysql',
        'host'        => 'localhost',
        'username'    => 'root',
        'password'    => 'password',
        'dbname'      => 'databasename',
        'charset'     => 'utf8',
    ],
    'application' => [
        'controllersDir' => APP_PATH . '/controllers/',
        'modelsDir'      => APP_PATH . '/models/',
        'migrationsDir'  => APP_PATH . '/migrations/',
        'viewsDir'       => APP_PATH . '/views/',
        'pluginsDir'     => APP_PATH . '/plugins/',
        'libraryDir'     => APP_PATH . '/library/',
        'cacheDir'       => APP_PATH . '/cache/',
        'baseUri'        => '/',
    ]
]);

Write the controller

In the app/controllers directory, create a new IndexController.php file and write the following code:

<?php
use PhalconMvcController;
class IndexController extends Controller{
    public function indexAction(){
        // action body
    }
}

Writing view files

In the app/views/index directory, create a new index.volt file and write the HTML code:

<html>
<head>
    <title>Phalcon2 框架</title>
</head>
<body>
    <h1>欢迎使用 Phalcon2 框架</h1>
</body>
</html>

Modify routing

Modify the app/config/router.php file, the code is as follows:

<?php
$router = new PhalconMvcRouter();
$router->add(
    '/',
    [
        'controller' => 'index',
        'action' => 'index'
    ]
);
return $router;

Run the Phalcon2 framework project

In Switch to the directory where the project is located in the terminal, and then enter the following command:

sudo php -S localhost:8080 -t public

Visit http://localhost:8080 in the browser, and you will see the words "Welcome to the Phalcon2 Framework", indicating that the framework is running success.

4. Summary

The Phalcon2 framework is a very excellent PHP framework with the advantages of fast execution, low resource usage, flexibility and easy expansion. This article introduces the installation and use of the Phalcon2 framework, and demonstrates a simple example. For PHP developers, mastering the use of the Phalcon2 framework can make development more efficient and simpler.

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