<\/span><\/h3>\nImplementing browser caching is an easy first step. HTTP headers can be sent from PHP to instruct the browser on how and when to cache or refresh resources. Here is an example of how to set headers for caching:<\/p>\n
<?php\n\/\/ Establecer tiempo de expiraci\u00f3n para 30 d\u00edas\n$expira = 60*60*24*30;\nheader("Cache-Control: max-age=$expira");\nheader('Expires: '.gmdate('D, d M Y H:i:s', time()+$expira).' GMT');\n?><\/code><\/pre>\n<\/span>Step 2: Implement Opcode Cache with OPcache<\/span><\/h3>\nOPcache is a bytecode cache extension included by default in PHP 5.5 and later. To enable OPcache, we need to make sure it is enabled in the file php.ini<\/code>:<\/p>\nopcache.enable=1 opcache.memory_consumption=128 opcache.interned_strings_buffer=8 opcache.max_accelerated_files=4000<\/code><\/pre>\nThese are some of the common directives, but they can be adjusted according to the needs of the website.<\/p>\n
<\/span>Step 3: Caching Objects with Memcached or Redis<\/span><\/h3>\naddServer('localhost', 11211); \/\/ Try to retrieve data from cache $data = $memcached->get('data_key'); if ($data === FALSE) { \/\/ The data is not cached, so we generate it $data = getExpensiveData(); \/\/ Store the data in cache for the future $memcached->set('data_key', $data, 60*60); \/\/ 1 hour expiration time } \/\/ Use $data ?><\/code><\/pre>\nFor Redis, the approach is similar, although the code would change slightly to use the Redis-specific extension.<\/p>\n
<\/span>Step 4: Advanced Caching Strategies<\/span><\/h3>\n<\/span>HTML Fragment Caching<\/strong><\/span><\/h4>\nIt consists of storing dynamically generated fragments of HTML code so that they can be inserted into the page without the need for reconstruction.<\/p>\n
<\/span>Database Query Caching<\/strong><\/span><\/h4>\nSome frameworks offer built-in solutions for caching query results, which can be a great advantage in database-intensive applications.<\/p>\n
<\/span>Tools and Libraries for PHP Caching<\/span><\/h3>\n\n- OPcache<\/strong>: Included in PHP for opcode caching.<\/li>\n
- memcached<\/strong>: High-performance distributed in-memory cache system.<\/li>\n
- Redis<\/strong>: Storage in key-value data structure in memory, suitable for object caching.<\/li>\n
- Varnish<\/strong>: HTTP accelerator that can also be used with PHP.<\/li>\n<\/ul>\n
<\/span>Best Practices and Tips<\/span><\/h2>\n\n- Invalidate the Cache Prudently<\/strong>: Maintain a strategy to invalidate or update the cache when the underlying data changes.<\/li>\n
- Establish Reasonable Expiration Times<\/strong>: Different data requires different expiration times. Adjust these times based on how often the data changes.<\/li>\n
- Security<\/strong>: Ensure that sensitive information is not inadvertently cached.<\/li>\n
- Monitoring and Adjustment<\/strong>: Constantly measure performance and adjust your caching strategies as necessary.<\/li>\n<\/ul>\n
<\/span>Conclusion<\/span><\/h2>\nCaching in PHP is a powerful technique to improve the performance of web applications. By reducing the load on the server and decreasing response times, caching can provide a better user experience and greater operational efficiency. Implementing an effective caching system in PHP requires careful evaluation of the needs of the application, as well as selecting the most appropriate strategies and tools.<\/p>\n
Developers who implement caching with PHP will find that their websites not only run faster, but are also better prepared to scale and handle unexpected traffic spikes. With best practices in mind and a strategic approach, caching is definitely a performance improvement that cannot be ignored in web development.<\/p>","protected":false},"excerpt":{"rendered":"
El rendimiento de un sitio web es un factor esencial que impacta en la experiencia del usuario y en el posicionamiento dentro de los buscadores. En el mundo del desarrollo web, el caching es una t\u00e9cnica fundamental para mejorar la velocidad de carga de las p\u00e1ginas y optimizar el rendimiento. En este art\u00edculo, nos centraremos […]<\/p>","protected":false},"author":1,"featured_media":24587,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[420,2206],"tags":[38,205,1202,1268,63,60,15,202],"class_list":["post-24586","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-php","tag-como","tag-blog","tag-caching","tag-implementar","tag-mejorar","tag-para","tag-php","tag-rendimiento"],"_links":{"self":[{"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/posts\/24586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/comments?post=24586"}],"version-history":[{"count":0,"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/posts\/24586\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/media\/24587"}],"wp:attachment":[{"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/media?parent=24586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/categories?post=24586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nelkodev.com\/en\/wp-json\/wp\/v2\/tags?post=24586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}