How to Use ServBay's Built-in Memcached Module

As a robust integrated web development tool, ServBay includes a built-in memcached module that is very easy to enable. Memcached is a high-performance, distributed memory object caching system widely used in modern web development. With ServBay, developers can easily enable the memcached module to use memcached for data caching in PHP applications.

Overview of the Memcached Module

Memcached is a general-purpose distributed caching system used to accelerate dynamic web applications. By storing data in memory, it reduces database load, thereby improving the response speed and performance of applications.

Main Features

1. High Performance: Memcached provides fast data read and write capabilities by caching data in memory, significantly enhancing application response speed.
2. Distributed Architecture: Memcached supports distributed caching, allowing cache data to be shared across multiple servers, enhancing system scalability and reliability.
3. Simple and Easy to Use: Memcached offers simple API interfaces, enabling developers to easily integrate and use memcached in their applications.
4. Reduces Database Load: By caching frequently accessed data, memcached effectively reduces the number of database queries, lowering database pressure.

Difference Between Memcache and Memcached

In PHP, there are two extension modules related to Memcache: memcache and memcached. Although their names are similar, there are some important differences:

1. memcache Module:

   • An older PHP extension.
   • Provides a simple procedural API.
   • Does not support some advanced features like consistent hashing and multi-threading.

2. memcached Module:

   • A newer PHP extension.
   • Provides an object-oriented API.
   • Supports more advanced features like consistent hashing, multi-threading, and better serialization options.

ServBay's Built-in Memcached Module Version

ServBay supports multiple PHP versions and pre-installs and enables the corresponding memcached module by default for each version. The currently included memcached module version is 3.2.0, which may vary depending on the PHP version.

How to Enable the Memcached Module

By default, the memcached module is enabled, requiring no extra configuration.

Using Memcached in PHP Code

Once the memcached module is enabled, you can use the memcached client for data caching operations in your PHP code. Below is a simple example:

Example Code

<?php
// Connect to the memcached server
$memcached = new Memcached();
$memcached->addServer('localhost', 11211) or die ("Could not connect");

// Set cache data
$key = 'user_1234';
$data = ['name' => 'ServBay', 'email' => '[email protected]', 'age' => 30];
$memcached->set($key, $data, 3600); // Cache for 1 hour

// Get cache data
$cachedData = $memcached->get($key);
if ($cachedData) {
    echo "Cached data: ";
    print_r($cachedData);
} else {
    echo "No cache found for key: $key";
}
?>

Conclusion

ServBay offers a convenient way to manage and enable the memcached module. Through simple configuration and restart operations, developers can quickly enable the memcached module across different PHP versions, enabling the use of memcached for data caching in PHP applications. Memcached's high performance, distributed architecture, and ease of use make it an indispensable caching solution in modern web development. With ServBay and memcached, developers can build efficient and responsive web applications.