In PHP e-commerce, how do I use caching?

Caching can significantly speed up the performance of your PHP e-commerce application by storing frequently accessed data in memory or on disk, minimizing the need for repeated database queries.

Below is a simple implementation of file-based caching in PHP. You can adjust the logic to use Redis, Memcached, or any other caching mechanisms as needed.


        <?php
        function getCachedData($cacheKey) {
            // Define the cache file path
            $cacheFile = 'cache/' . md5($cacheKey) . '.cache';
            $cacheTime = 3600; // Cache duration (1 hour)

            // Check if the cache file exists and is still valid
            if (file_exists($cacheFile) && (time() - $cacheTime < filemtime($cacheFile))) {
                // Cache is valid, return the cached data
                return file_get_contents($cacheFile);
            } else {
                // Cache is invalid, fetch new data
                $data = fetchDataFromDatabase($cacheKey); // Assume this function fetches data
                // Store data in cache
                file_put_contents($cacheFile, $data);
                return $data;
            }
        }

        function fetchDataFromDatabase($key) {
            // Placeholder for database fetching logic
            // This function should query your database and return the result
            return "Fetched data for " . $key;
        }

        // Usage
        $data = getCachedData('product_list');
        echo $data;
        ?>

In PHP e-commerce, how do I use caching?

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In PHP e-commerce, how do I use caching?

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