symfony/lock v7.0.2

Symfony/Lock is an invaluable PHP tool that allows developers to obtain and manage locks, providing a mechanism for exclusive access to shared resources. This feature ensures that a common resource is not simultaneously compromised or altered by concurrent scripts, helping to prevent script collisions and increase data integrity in critical processes.

Using Symfony/Lock involves creating and managing locks over a shared resource in your PHP code. Here is a basic usage example:

use Symfony\Component\Lock\LockFactory;
use Symfony\Component\Lock\Store\SemaphoreStore;

$store = new SemaphoreStore();
$factory = new LockFactory($store);

$lock = $factory->createLock('pdf-generation');

if ($lock->acquire()) {
    // The resource "pdf-generation" is locked.
    // You can compute and generate your heavy PDF files here.

    $lock->release();
}

In this example, we first create a SemaphoreStore and a LockFactory from that store. Then we use this lock factory to create a lock on the resource 'pdf-generation'. By calling $lock->acquire(), we try to acquire the lock to ensure exclusive access to the resource. If the lock is successfully acquired, the system proceeds to execute the code within the if-block. Once our heavy computations or tasks are accomplished, we call the $lock->release() command to release our exclusive lock on the resource.

You can find comprehensive documentation for the Symfony/Lock component at Symfony/Lock Documentation. It provides a detailed overview, explanation of concepts, and additional usage examples for mastering the Lock component. Be sure also to explore contributing guidelines, issue reporting, and pull requests in the main Symfony repository to fully leverage the component and engage with Symfony's dynamic developer community.