Lightweight class supporting critical section locking in PHP.
It requires PHP >= 7.1 and no other dependency.
$pdo = new PDO('...');
$driver = new Bileto\CriticalSection\Driver\PdoPgsqlDriver($pdo);
$criticalSection = new Bileto\CriticalSection\CriticalSection($driver);
$criticalSection->enter('Section Label');
// Perform set of steps of critical tasks
$criticalSection->leave('Section Label');