PHP framework performance optimization: micro-optimization techniques and performance improvement

PHP framework performance optimization tips include: reducing database queries (caching data, optimizing queries) optimizing image processing (parallel processing, caching thumbnails) using opcode caching (storing compiled code) reducing HTTP requests (merging CSS/JS, Using CDN) to optimize string processing (StringBuilder mode, built-in functions, cached strings)

PHP framework performance optimization: micro-optimization techniques and performance improvements

In PHP applications, performance optimization is crucial. This article will explore micro-optimization techniques to significantly improve the performance of your PHP framework.

1. Reduce database queries

Database queries consume a lot of time. Reduce the number of queries by:

• Use a caching mechanism (such as Redis) to store frequently accessed data.
• Use query cache (such as apcu_cache_info()) to cache query results.
• Optimize queries to reduce the number of columns and joins.

2. Optimize image processing

Image processing is another performance bottleneck. This can be optimized by:

• Using a third-party library such as GD or ImageMagick for parallel image processing.
• Cache thumbnails to reduce image size.
• Use server-side compression features such as GZIP to reduce image size.

3. Use opcode cache

Opcode cache (such as OPCache) stores compiled PHP code in memory to reduce subsequent request times Compilation time.

// 启用 OPCache
opcache_enable();

4. Reduce HTTP requests

Every HTTP request involves overhead. Reduce the number of requests by:

• Use CSS Sprites to merge multiple CSS files.
• Use JavaScript to bundle multiple JavaScript files.
• Use CDN to host static resources.

5. Optimize string processing

String processing is very common in PHP. Can be optimized by:

• Avoid unnecessary string concatenation (use "StringBuilder" pattern instead).
• Use built-in string functions (such as preg_replace()) instead of regular expressions.
• Cache frequently accessed strings.

Practical case: Using APC cache to accelerate Laravel

// 安装 APC 扩展
composer require apcu/apcu

// 启用 APC 缓存
config([
    'cache.default' => 'apc',
]);

By applying the above technology, the performance of the PHP framework can be significantly improved. Continuously monitor performance metrics and make necessary adjustments when issues arise to ensure optimal performance.

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