Application practice of PhpFastCache in e-commerce websites

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Release: 2023-07-07 22:00:01
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Application practice of PhpFastCache in e-commerce websites

Introduction:
For e-commerce websites, fast response and efficient caching system are the keys to achieve good user experience and high traffic management. PhpFastCache is a popular open source caching system that provides support for various caching technologies, such as file caching, memory caching, and database caching. This article will introduce the application practice of PhpFastCache in e-commerce websites and give corresponding code examples.

  1. Install and configure PhpFastCache
    First, we need to install PhpFastCache, which can be installed through Composer. Add the following dependencies in the composer.json file in the project root directory:

    "phpfastcache/phpfastcache": "^7.1"
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    Run the composer install command to install.

In the website configuration file, we need to initialize and configure PhpFastCache. In the following example, we use the file caching method:

use PhpfastcacheHelperPsr16Adapter;

// 初始化缓存
$cache = new Psr16Adapter('Files');

// 配置缓存路径
$cache->setPath('/path/to/cache/directory');

// 配置缓存过期时间
$cache->setDefaultTtl(3600); // 1小时
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  1. Page-level caching
    In e-commerce websites, the content of some pages may be static and does not need to be dynamically generated frequently. At this time, page-level caching can be used to improve response speed and reduce server load.

Take the product details page as an example. When the page is accessed, it first tries to obtain the content from the cache:

// 构建缓存键名
$cacheKey = 'product_detail_' . $productId;

// 尝试从缓存获取页面内容
$productDetail = $cache->getItem($cacheKey)->get();

// 缓存不存在时,生成页面内容
if (is_null($productDetail)) {

    // 生成页面内容的代码...

    // 将页面内容存入缓存
    $cache->getItem($cacheKey)->set($productDetail)->expiresAfter(3600);
}
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  1. Data cache
    In e-commerce websites , a large number of database queries and calculations are common. In order to reduce the database load and improve response speed, we can cache some frequently accessed data.

Taking product classification data as an example, we can cache the data as follows:

// 构建缓存键名
$cacheKey = 'product_categories';

// 尝试从缓存获取商品分类数据
$productCategories = $cache->getItem($cacheKey)->get();

// 缓存不存在时,从数据库查询并存入缓存
if (is_null($productCategories)) {
    // 从数据库查询商品分类数据的代码...

    // 将商品分类数据存入缓存
    $cache->getItem($cacheKey)->set($productCategories)->expiresAfter(3600);
}
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  1. Fragment caching
    Fragment caching is a way to cache part of the content on the page Caching technology. In e-commerce websites, some page fragments that impose complex logic, such as displaying the number of items in a shopping cart or displaying user login information, can use fragment caching to improve response speed and reduce resource consumption.

Taking the display of the number of items in the shopping cart as an example, we can perform the following fragment caching:

// 构建缓存键名
$cacheKey = 'cart_quantity_' . $userId;

// 尝试从缓存获取购物车商品数量
$cartQuantity = $cache->getItem($cacheKey)->get();

// 缓存不存在时,计算并存入缓存
if (is_null($cartQuantity)) {
    // 计算购物车商品数量的代码...

    // 将购物车商品数量存入缓存
    $cache->getItem($cacheKey)->set($cartQuantity)->expiresAfter(60); // 1分钟
}
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Conclusion:
In e-commerce websites, using PhpFastCache can significantly improve user performance experience and website performance. Through page-level caching, data caching and fragment caching, we can reduce the number of database queries and calculations, reduce server load, and achieve optimization and acceleration. I hope the sample code provided in this article will be helpful for developing and applying PhpFastCache.

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