Performance optimization tips you need to pay attention to when developing public accounts in PHP

Performance optimization skills that you need to pay attention to when developing public accounts in PHP

With the rapid development of the mobile Internet, public accounts have become a way for enterprises and individuals to obtain user traffic, promote products and important channel of service. Performance optimization is a key consideration when developing and maintaining official accounts. This article will introduce some performance optimization techniques for developing public accounts in PHP, and provide specific code examples to help developers better understand and apply them.

1. Cache Optimization

Cache is an important means to improve the performance of official accounts. With caching, you can reduce database queries and network requests and speed up page loading. During the development process, caching technologies such as Redis and Memcached can be used to achieve this. The following is a sample code that uses Redis to cache WeChat access token:

$redis = new Redis();
$redis->connect('127.0.0.1', 6379);
$accessToken = $redis->get('access_token');

if (!$accessToken) {
    $accessToken = // 从微信服务器获取access token的代码

    $redis->set('access_token', $accessToken, 7200); // 设置过期时间为2小时
}

// 使用$accessToken进行相关操作

2. Database optimization

The database is a resource frequently used in public account development, so the optimization of the database It can significantly improve the performance of public accounts. There are several optimization techniques:

(1) Reasonably design the database table structure: avoid redundant fields, multi-table related queries, etc. to ensure the simplicity and efficiency of the database structure.

(2) Use index: Add index according to the queried field to speed up the query. For example, if you often query user information based on openid, you can add an index to the openid field.

(3) Reasonable use of the database connection pool: Keep the number of database connections appropriately concurrent to avoid performance degradation caused by too many database connections.

3. Code Optimization

Writing efficient code is the core content of official account performance optimization. There are several optimization techniques in the following aspects:

(1) Reduce the number of file inclusions: In PHP development, using include and require to include files is a common operation. However, frequent file inclusion will cause additional IO overhead. The number of file inclusions should be minimized, or an automatic loading mechanism should be used to avoid frequent file IO.

(2) Avoid repeated queries: Reduce repeated queries to the database through caching mechanism and reuse of query results. For example, you can store query results in variables to avoid querying the same data multiple times.

(3) Use appropriate data structures: Choose appropriate data structures according to specific scenarios to improve code execution efficiency. For example, use arrays to replace loop operations, use hash tables to replace complex nested judgments, etc.

(4) Use buffers appropriately: To reduce network IO overhead, buffer technology can be used. For example, the ob_start() and ob_flush() functions can open and refresh the output buffer to improve response speed.

4. Image Optimization

Public accounts often involve the display of images, so the optimization of images is crucial to improving user experience and performance. The following are some suggestions for image optimization:

(1) Choose the appropriate image format: Choose the appropriate image format according to the specific situation, such as JPEG, PNG. JPEG is suitable for images such as photos that need to retain details, while PNG is suitable for images that need to retain transparency channels.

(2) Compress image size: Use appropriate tools to compress image size and reduce network transmission overhead. For example, you can use online tools such as TinyPNG and JPEGmini.

(3) Use image lazy loading: Image lazy loading technology can delay loading of images in non-visible areas and reduce page loading time.

Summary:

The above are some performance optimization techniques that need to be paid attention to when developing public accounts in PHP. Through techniques such as cache optimization, database optimization, code optimization, and image optimization, the performance and user experience of official accounts can be improved. I hope the content of this article can inspire developers who develop public accounts in PHP to better optimize their codes and applications.

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